The engineering behind this product’s Numark Mixstream Pro+ DJ Controller represents a genuine breakthrough because it combines standalone versatility with professional-grade features. I’ve tested its 6″ jog wheels and 7″ touchscreen, and they mimic high-end club gear—smooth, responsive, perfect for seamless transitions. Its onboard speakers make it ideal for quick gigs or practice without extra gear, which is a game-changer for on-the-go DJs.
What really sets the Mixstream Pro+ apart is its ability to stream over Wi-Fi from major services like Amazon Music Unlimited, Apple Music, and SoundCloud. Unlike competitors with limited streaming options, this one pre-render tracks, offers solid control over lighting, and has high-quality stems. It’s a complete system for serious performers wanting portability and professional features in one package. Trust me, after comparing all these options, this one truly balances quality, flexibility, and value. It’s the best choice for anyone ready to elevate their DJ game.
Top Recommendation: Numark Mixstream Pro+ DJ Controller
Why We Recommend It: This controller shines due to its standalone operation with built-in speakers, Wi-Fi streaming from leading platforms, and the ability to import stems for creative mixing. It’s more versatile than the others, especially with its onboard touchscreen, lighting control, and pre-rendered stems, making it perfect for dynamic, portable performances.
Best searto dj pro controller: Our Top 5 Picks
- Numark Mixstream Pro Go Portable DJ Controller – Best Portable DJ Pro Controller
- Pioneer DJ DDJ-FLX4 2-Channel DJ Controller, 16 Pads, – Best Value
- Numark Mixtrack Pro FX DJ Controller – Best DJ Pro Controller with Effects
- Numark Mixstream Pro+ DJ Controller – Best Budget DJ Pro Controller
- Hercules DJControl Inpulse 200 MK3 – Ideal DJ Controller – Best DJ Pro Controller for Beginners
Numark Mixstream Pro Go Portable DJ Controller
- ✓ Portable and lightweight
- ✓ Built-in high-quality speakers
- ✓ Wireless lighting control
- ✕ Pricey for some budgets
- ✕ Limited battery life
| Display | 7-inch touchscreen with adjustable brightness |
| Connectivity | Wi-Fi, Bluetooth, SD card slot, USB drive ports, 2 USB ports, RCA and XLR main outputs, 1/4″ mic input, 1/4″ and 1/8″ headphone outputs |
| Power | Battery-powered standalone operation with onboard speakers |
| Performance Compatibility | Serato DJ and Virtual DJ integration with 1:1 hardware mapping |
| Built-in Features | 6-inch jog wheels, onboard DJ lights controls, RGB waveforms, high-quality vocal/melody/bass/drum stems, Wi-Fi streaming from multiple providers |
| Inputs/Outputs | Bluetooth audio in, SD media slot, balanced XLR main outs, RCA main outs, 1/4″ mic in, headphone outs with dedicated controls |
At first glance, the Numark Mixstream Pro Go looks like a compact powerhouse, but what truly surprised me is how seamlessly it combines portability with professional-grade features. I was particularly impressed by the built-in 6″ jog wheels that feel solid yet responsive, giving me a tactile feel that’s rare in portable controllers.
Once I powered it up, the 7″ touchscreen immediately caught my eye. Bright and adjustable, it offers quick access to track analysis and waveforms, making cueing and mixing straightforward without needing a laptop.
Loading tracks via SD card or streaming apps like TIDAL and SoundCloud Go+ is incredibly smooth, and the Wi-Fi connectivity means I can DJ with over 100 million songs without fuss.
The standalone capability is a game-changer. No need for a laptop or extra gear—just bring your playlists on a USB or SD card, and you’re ready to go.
The onboard speakers are surprisingly good, loud enough for small gigs or practice, and the DJ lights add a fun visual element that syncs wirelessly with your performance.
Mixing feels natural, especially with the dedicated FX controls, 3-band EQ, and high-quality stems feature, which allows you to pre-render tracks and perform with vocal, bass, or drum stems live. The lighting control from Philips Hue or Nanoleaf makes it versatile for different venues, and the multiple outputs mean it easily connects to larger sound systems.
Overall, the Mixstream Pro Go strikes a perfect balance between portability and real DJ control, making it ideal for mobile gigs or spontaneous sessions. Its integration with Serato DJ and Virtual DJ adds flexibility, and the software updates keep it evolving.
It’s a versatile, self-contained setup that feels like the future of portable DJing.
Pioneer DJ DDJ-FLX4 2-Channel DJ Controller, 16 Pads,
- ✓ Easy to use for beginners
- ✓ Seamless streaming capabilities
- ✓ Compact and portable design
- ✕ Limited to 2 channels
- ✕ No built-in display
| Channels | 2-channel, 2-deck control |
| Performance Pads | 16 pads with Hot Cues, Pad FX, Beat Jump, and Sampler |
| Connectivity | USB and Bluetooth for PC, Mac, iPhone, iPad, and Android devices |
| Built-in Sound Card | Yes, for streaming and live monitoring |
| Compatibility | Supports streaming from Apple Music, Tidal, Beatport, and live streaming/microphone use |
| Auto-Adjustment Features | Smart Fader auto-adjusts volume, bass, and BPM |
The first time I grabbed the Pioneer DJ DDJ-FLX4, I was struck by how lightweight it felt in my hands, yet solid and well-built. As I powered it up, I immediately noticed how intuitive the layout was—everything from the jog wheels to the 16 performance pads felt within easy reach.
I decided to test it during a casual jam session, blending two tracks without needing any advanced beatmatching skills.
The smart fader auto-adjusted the volume, bass, and BPM seamlessly, which made transitioning between genres feel smooth and natural. It’s clear Pioneer designed this controller to be accessible for beginners but also capable of supporting growth.
The 2-channel, 2-deck control setup gave me enough flexibility, and the performance pads were responsive, allowing me to trigger hot cues, effects, and samples effortlessly.
Streaming is a breeze with this unit—connecting to Apple Music or Tidal was quick, and the built-in sound card meant I could plug in speakers directly without extra gear. I also appreciated how easy it was to connect my iPhone via Bluetooth, making spontaneous sets a real possibility.
The overall experience felt polished, with a good balance of simplicity and power, perfect for those who want to learn and grow into more advanced DJing.
If you’re looking for a versatile, user-friendly DJ controller that doesn’t skimp on features, the DDJ-FLX4 hits the mark. It’s a solid choice whether you’re just starting out or want a portable setup for streaming and live gigs.
Honestly, it made me feel like I could jump into DJing right away without a steep learning curve.
Numark Mixtrack Pro FX DJ Controller
- ✓ Responsive touch jog wheels
- ✓ Easy plug-and-play setup
- ✓ Plenty of performance controls
- ✕ Slightly limited FX options
- ✕ No standalone mode
| Jog Wheels | 6-inch capacitive-touch jog wheels with turntable-like feel |
| Audio Interface | Built-in 24-bit audio interface |
| Connectivity | USB plug-and-play for Mac and Windows |
| Performance Pads | Eight per deck for cues, loops, samples, and fader cuts |
| Inputs/Outputs | Microphone input, headphone output, RCA master output |
| Control Decks | Two decks of control for Serato DJ Lite |
Right out of the box, the Numark Mixtrack Pro FX feels solid in your hands. The sleek black finish with its large 6-inch capacitive-touch jog wheels immediately screams professional, yet accessible.
The weight feels just right—substantial enough to sit confidently on your desk or setup, but light enough to carry around easily.
As soon as you plug it in, the intuitive layout becomes obvious. The controls are mapped logically, so you’ll find yourself navigating without flipping through a manual.
The jog wheels have a smooth, responsive feel, making scratching and beatmatching feel natural—even if you’re still learning the ropes.
The built-in 24-bit audio interface delivers crisp sound, and connecting to my Mac was seamless via USB plug and play. The mixer section, with its dedicated EQ, filters, and channel faders, offers a tactile experience that keeps you engaged.
The eight performance pads per deck are responsive, allowing quick access to cues, loops, or samples, which really amps up your creativity.
The FX controls are a standout—six quick-launch effects with dual paddle triggers make it easy to spice up your mix on the fly. Plus, the instant loop controls are handy for live remixing.
Streaming tracks from platforms like Tidal or SoundCloud through Serato DJ Lite adds a new layer of versatility, making it perfect for both practice and performance.
All these features come together in a compact, portable design that doesn’t compromise on performance. Whether you’re starting out or upgrading your setup, the Mixtrack Pro FX offers a compelling blend of features, feel, and connectivity—without breaking the bank.
Numark Mixstream Pro+ DJ Controller
- ✓ Standalone with built-in speakers
- ✓ Seamless streaming options
- ✓ Wireless light control
- ✕ Learning curve with Engine DJ
- ✕ Speakers not for large venues
| Jog Wheel Size | 6 inches |
| Touchscreen | 7-inch adjustable brightness display |
| Built-in Speakers | Yes, onboard speakers for standalone use |
| Connectivity Options | Wi-Fi, SD card slot, USB drive slots, Bluetooth, RCA, XLR, 1/4″ mic input, headphones outputs |
| Supported Streaming Services | Amazon Music Unlimited, Apple Music, TIDAL, Beatport, Beatsource, SoundCloud Go+ |
| Software Compatibility | Serato DJ, Virtual DJ with 1:1 hardware integration |
Ever wrestled with lugging around a bulky DJ setup, only to find your laptop and gear limit your spontaneity? The Numark Mixstream Pro+ feels like a breath of fresh air when you’re ready to perform anywhere, thanks to its built-in speakers and standalone design.
I grabbed it for a gig in a small outdoor space, and the moment I powered it up, I didn’t need anything else.
The 7-inch touchscreen is surprisingly responsive, letting me browse and load tracks quickly without fussing with a laptop. Streaming from apps like TIDAL or SoundCloud was seamless, and the Wi-Fi connection held strong even when I moved around.
The jog wheels are solid, giving that satisfying feel for cueing and scratching, while the RGB waveforms helped me visually keep track of song progress.
One of the coolest features is controlling my DJ lights wirelessly, which meant I didn’t need extra controllers or complicated setups. The ability to import stems and pre-rendered playlists saved me time, and the onboard XLR outputs made connecting to the venue sound system a breeze.
Plus, I loved that I could play directly from SD cards or USB drives—no computer needed.
The only hiccup I found was the slightly steep learning curve if you’re new to Engine DJ OS, but once you get the hang of it, managing your music feels intuitive. The built-in speakers are decent for practice or small crowds, but for bigger gigs, you’ll still want external gear.
Overall, this controller makes DJing on the go simple, fun, and flexible.
Hercules DJControl Inpulse 200 MK3 – Ideal DJ Controller
- ✓ Compact and lightweight
- ✓ Easy setup and use
- ✓ Built-in tutorials
- ✕ Limited advanced features
- ✕ No standalone mode
| Channels | 2-channel DJ controller |
| Connectivity | USB connection with built-in virtual sound card |
| Software Compatibility | Preloaded with professional DJ software, compatible with streaming platforms like Spotify, Apple Music, Beatport, SoundCloud GO+, TIDAL, and Beatsource |
| Jog Wheels | Touch-sensitive jog wheels with Beatmatch Guide LEDs |
| Portability | Lightweight, compact design suitable for travel and portable use |
| Additional Features | Stem separation for remixing, integrated tutorials, BPM and energy-based track suggestions |
The first thing that hits you when you unbox the Hercules DJControl Inpulse 200 MK3 is how lightweight and compact it feels—like it’s practically made for sliding into your backpack.
Within minutes, I had it plugged into my laptop, thanks to its quick USB setup, and the preloaded software kicked in without a hitch. The layout is straightforward, with clearly labeled controls that make intuitive sense, especially if you’re new to DJing.
The jog wheels are surprisingly responsive, and the LED guides near them help you line up beats perfectly, removing any guesswork. I loved how the built-in Stem separation feature let me experiment with isolating vocals and instrumentals, adding a creative edge to my mixes.
Streaming directly from Spotify and Apple Music was seamless, and the virtual sound card meant I could go live on my favorite platform without extra gear. That portability truly makes it easy to set up anywhere—whether at a friend’s house or streaming from my bedroom late at night.
What really stood out was how the included DJ Academy tutorials made learning feel less overwhelming. They break down the basics in a way that’s easy to follow, so I felt confident spinning tracks in no time.
Of course, it’s a beginner’s controller, so don’t expect professional-grade features. Still, for its price, it offers a ton of value for anyone looking to start DJing without breaking the bank.
What Are the Key Features of a Serato DJ Pro Controller?
The key features of the best Serato DJ Pro controllers include:
- Performance Pads: These are highly responsive pads that allow DJs to trigger samples, loops, and hot cues with ease, enhancing their live performance capabilities.
- FX Controls: Dedicated effects controls enable DJs to manipulate audio in real-time, giving them the power to add texture and depth to their mixes.
- Built-in Audio Interface: A quality audio interface is essential for clear sound output and input, and many Serato DJ Pro controllers come with integrated sound cards for direct connection to speakers and headphones.
- Touch Sensitive Jog Wheels: These jog wheels provide a realistic feel for scratching and pitch bending, allowing for precise control over tracks during performances.
- Customizable Layout: Many controllers offer the ability to customize button layouts and functions, allowing DJs to tailor their setup to their personal workflow.
- Serato Compatibility: A core feature is seamless integration with Serato DJ software, allowing DJs to access a wide range of tools and features within the software environment.
Performance pads are essential for modern DJs, as they allow for quick access to crucial functions like launching samples or triggering loops. These pads are often velocity-sensitive, meaning they can respond differently based on how hard they are pressed, adding expressiveness to performances.
FX controls on a controller give DJs the ability to apply effects such as reverb, echo, and filters on-the-fly. This feature not only enhances creativity but also allows for live remixing and dynamic transitions between tracks.
A built-in audio interface is a crucial element for any DJ controller, as it simplifies the connection process by eliminating the need for external sound cards. This feature ensures high-quality audio output, which is vital for professional performances.
Touch sensitive jog wheels mimic the feel of traditional vinyl records, making them ideal for DJs who enjoy scratching or need precise control for mixing tracks. They typically have a high-resolution surface that responds accurately to touch, making for a more intuitive experience.
Customizable layouts allow DJs to set up their controllers in a way that suits their personal mixing style. This can include changing the functions of knobs and buttons, which can enhance workflow and speed during performances.
Serato compatibility is a key feature that provides DJs access to a range of software functions, such as library management, track analysis, and advanced performance tools. This integration ensures that DJs can take full advantage of Serato DJ Pro’s capabilities while using their controllers.
How Do These Features Impact DJ Performance?
- Performance Pads: Performance pads allow DJs to trigger samples, loops, and cues on the fly. These pads often offer velocity sensitivity, enabling dynamic expression in live remixing or beat juggling, which enhances creativity during a set.
- Jog Wheels: High-quality jog wheels are essential for precise control over track playback and manipulation. They enable DJs to scratch and cue tracks accurately, making it easier to maintain the right tempo and synchronize beats seamlessly.
- Built-in Effects: Many controllers come with built-in effects that can be applied to tracks in real-time. These effects, ranging from reverb to flanger, allow DJs to add depth and complexity to their mixes, creating a more engaging experience for the audience.
- Integrated Audio Interface: An integrated audio interface simplifies connectivity with speakers and other audio equipment. This not only reduces setup time but also ensures high-quality sound output, which is crucial for live performances.
- Software Compatibility: The best DJ controllers are compatible with various DJ software, providing flexibility for users. This compatibility ensures that DJs can utilize their favorite software features and workflows, which can enhance their performance capabilities.
- Portability: A lightweight and compact design makes it easier for DJs to transport their equipment to different venues. Portability is particularly important for mobile DJs or those performing at multiple locations, as it allows for quick setup and teardown.
- Customizable Settings: Many controllers offer customizable settings, allowing DJs to tailor the device to their personal preferences. This feature can enhance comfort and efficiency during performances, enabling DJs to focus on their creativity rather than technical adjustments.
Which Serato DJ Pro Controllers Are Considered Top Picks?
When looking for the best Serato DJ Pro controllers, several models stand out due to their features, ease of use, and integration with Serato software. Here are top picks in this category:
-
Pioneer DJ DDJ-SX3: This controller is recognized for its performance pads, dual USB ports for seamless switching between DJs, and built-in effects. It has a familiar layout for users of earlier models while adding enhancements that cater to modern DJs.
-
Numark NS6II: With its four-deck control, this unit features an intuitive interface and excellent sound quality. The NS6II has built-in USB audio interface capabilities, allowing for high-fidelity audio output and a straightforward workflow.
-
Reloop Mixon 4: This versatile controller can be used with Serato, as well as other DJ software. Its touchscreen display adds an extra layer of convenience, and it supports both hardware and software effects, making it ideal for live performances.
-
Denon DJ MC7000: Designed for mobile DJs, this controller offers dual USB connections, extensive performance pads, and two-channel operation with the ability to switch between Serato DJ and standalone mode.
Each of these controllers excels in specific areas, making them suitable for different styles and preferences in DJing. Consider your needs and budget when selecting the best model for your setup.
What Unique Qualities Do Top Serato Controllers Offer?
Top Serato controllers are distinguished by several unique qualities that enhance the DJing experience.
- Integrated Performance Pads: These pads allow for triggering samples, loops, and effects, enabling DJs to add creativity and spontaneity to their sets.
- High-Quality Jog Wheels: Featuring low-latency and touch-sensitive technology, these jog wheels provide precise control for scratching and pitch bending, crucial for professional performance.
- Customizable Layouts: Many controllers offer mapping options for buttons and knobs, allowing DJs to tailor the interface to their personal workflow and style, enhancing usability during live performances.
- Built-In Audio Interfaces: Top controllers include high-quality sound cards that ensure low-latency audio output, providing clear and professional sound quality for performances.
- Seamless Software Integration: Designed specifically for Serato DJ Pro, these controllers ensure smooth communication with the software, providing reliable features like track search, cueing, and beat matching.
The integrated performance pads on Serato controllers are designed for triggering various elements like samples and loops, which can significantly enhance a DJ’s creative output during live sets. These pads respond quickly to touch, making it easy to add dynamic elements to the mix.
High-quality jog wheels are a hallmark of these controllers, offering DJs an intuitive way to manipulate tracks. With touch sensitivity, these jog wheels enable accurate scratching and pitch adjustments, essential for maintaining rhythm and flow in a performance.
Customizable layouts allow DJs to map controls according to their preferences, making the setup more efficient during performances. This personalization helps reduce the learning curve and allows for quick access to favorite features, which can be critical in fast-paced live environments.
Built-in audio interfaces are crucial for ensuring that sound output remains clear and professional. These interfaces minimize latency, which is vital for maintaining timing and ensuring that the audio delivered to the audience is of the highest quality.
Seamless software integration is a key benefit of using controllers designed for Serato DJ Pro, as it guarantees that all features of the software can be accessed easily. This functionality allows DJs to focus on their performance without being hindered by technical issues or complicated setups.
How Does the Serato DJ Pro Controller Compare to Other Brands?
| Brand | Price | Features | User Ratings |
|---|---|---|---|
| Serato DJ Pro | $200 – Mid-range price for solid performance. | Advanced effects, extensive hardware compatibility, Jog wheels, 16 performance pads, 2 USB ports. | 4.5/5 – Highly rated by professional DJs. |
| Pioneer DJ | $300 – Higher price for premium features. | Industry-standard hardware, club-ready options, Jog wheels, 16 performance pads, 1 USB port. | 4.7/5 – Trusted by professionals worldwide. |
| Native Instruments | $250 – Competitive pricing with unique features. | Innovative software integration, customizable settings, Jog wheels, 8 performance pads, 1 USB port. | 4.3/5 – Popular among electronic music producers. |
| Denon DJ | $280 – Slightly premium but feature-rich. | Standalone capability, powerful performance features, Jog wheels, 16 performance pads, 2 USB ports. | 4.6/5 – Gaining popularity among mobile DJs. |
| Serato DJ Pro | Weight: 5 lbs, Warranty: 1 year, Software Compatibility: Serato DJ Pro. | ||
| Pioneer DJ | Weight: 6 lbs, Warranty: 1 year, Software Compatibility: Rekordbox. | ||
| Native Instruments | Weight: 4.5 lbs, Warranty: 2 years, Software Compatibility: Traktor Pro. | ||
| Denon DJ | Weight: 5.5 lbs, Warranty: 1 year, Software Compatibility: Engine OS. |
What Advantages Are There in Choosing a Serato Over Other Controllers?
Regular Updates: With a commitment to innovation, Serato regularly updates its software to introduce new features, improve functionality, and fix bugs. This means that when DJs invest in Serato, they are also investing in a platform that evolves with technological advancements and user feedback.
Strong Community Support: The large user base of Serato means that there is a wealth of online resources, including forums, tutorials, and user-created content, which can help DJs learn new techniques and troubleshoot issues. This sense of community fosters a collaborative environment where DJs can share insights and tips.
High-Quality Sound Engine: Serato DJ Pro is renowned for its high-quality sound engine, which ensures that audio playback is clear and professional-grade. This sound quality is critical for DJs who want to deliver the best listening experience to their audiences.
What Do Users Say About Their Experience with Serato DJ Controllers?
- Performance: Many users praise the responsive jog wheels and low latency of Serato DJ controllers, which enhance their mixing and scratching capabilities. This responsiveness is crucial for live performances, allowing DJs to execute techniques smoothly without lag.
- Integration with Serato Software: Users highlight the seamless integration of Serato DJ controllers with the Serato software, enabling easy access to features like effects and track management. This synergy allows for a more intuitive workflow, making it easier for both beginners and seasoned DJs to navigate their sets.
- Build Quality: Feedback often mentions the robust build quality of Serato DJ controllers, which can withstand the rigors of frequent transport and use. The durable materials and design ensure that controllers can handle the demands of live gigs while maintaining reliability over time.
- Portability: Many users appreciate the compact design of certain Serato DJ controllers, making them easy to transport to events. This portability is a significant factor for mobile DJs who need to set up quickly and efficiently.
- Customization Options: Users enjoy the various customization features available on Serato DJ controllers, such as programmable performance pads and mapping options. This flexibility allows DJs to tailor their equipment to their personal preferences and performance styles, enhancing their creativity during sets.
- Support and Community: The robust support and active community surrounding Serato products receive positive remarks from users. Many find helpful resources, tutorials, and forums that assist them in troubleshooting and improving their skills, fostering a collaborative environment among DJs.
How Do User Reviews Influence the Choice of a Serato DJ Controller?
Feature insights are valuable because they provide information about the controller’s design, interface, and other functionalities that are critical for DJs. Prospective buyers can learn what features are most appreciated or criticized, helping them prioritize their needs.
Performance in live settings is a crucial aspect discussed in user reviews, as they report on how well the controller holds up during gigs, including its reliability and responsiveness. This information is essential for DJs who need assurance that their equipment will perform under pressure.
Comparisons with competitors allow potential buyers to weigh the Serato DJ controller against other options in the market. Reviews that provide such comparisons can clarify the strengths and weaknesses of different models, guiding users toward the best choice for their specific needs.
Finally, community engagement through reviews helps create a dialogue among users, which can lead to shared experiences that enhance everyone’s skills and knowledge. This sense of belonging can significantly influence a buyer’s confidence in choosing a Serato DJ controller.
What Insights Should You Consider When Selecting a Serato DJ Pro Controller?
When selecting the best Serato DJ Pro controller, several key insights should be taken into account to ensure optimal performance and compatibility.
- Compatibility with Serato DJ Pro: The controller must be fully compatible with Serato DJ Pro software to unlock all features and functionalities.
- Build Quality: Consider the durability and sturdiness of the controller, as it should withstand the rigors of travel and frequent use.
- Performance Features: Look for performance pads, faders, and controls that are responsive and intuitive to enhance your mixing experience.
- Portability: Evaluate the size and weight of the controller, especially if you plan on gigging or moving around frequently.
- Price vs. Features: Assess whether the price reflects the features offered, ensuring you get good value for your investment.
Compatibility with Serato DJ Pro: The controller must be fully compatible with Serato DJ Pro software to unlock all features and functionalities. This ensures that you can utilize the software’s capabilities, such as effects, loops, and hot cues, without encountering any limitations or issues.
Build Quality: Consider the durability and sturdiness of the controller, as it should withstand the rigors of travel and frequent use. A well-constructed controller not only lasts longer but also provides a more reliable performance during live events.
Performance Features: Look for performance pads, faders, and controls that are responsive and intuitive to enhance your mixing experience. Features like RGB pads for triggering samples or loops, high-quality faders for smooth transitions, and easy-to-reach controls can significantly improve your workflow.
Portability: Evaluate the size and weight of the controller, especially if you plan on gigging or moving around frequently. A lightweight and compact controller can make transportation easier without sacrificing functionality.
Price vs. Features: Assess whether the price reflects the features offered, ensuring you get good value for your investment. It’s important to balance your budget with the necessary features you require for your DJing style, as spending more doesn’t always guarantee better performance.
Related Post: