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CME

CME WIDI Uhost Premium Bluetooth MIDI Interface & USB Host

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Set name: WIDI Uhost


Features

  • [Get rid of those cables] Add Bluetooth MIDI to your class compliant MIDI controllers and computers via USB. Reduce the cable clutter in the studio. Enjoy freedom on stage. Check out bluetoothmidi(dot)com to find out if your device is compatible.
  • [Plug, Pair & Play] Pair automatically between WIDI devices and Bluetooth MIDI controllers. Send all MIDI messages, incl. SysEx & MPE. Connect manually with iOS, macOS, Win10/11 & Android via simple step by step guides
  • [Ultra-Low Latency & Stability] WIDI delivers just 3 ms latency between two (2) devices with Smart Connectivity Algorithms, plus ultra-stable sub-1 ms jitter for precise timing. Adaptive Frequency Hopping minimizes interference and ensures reliable performance up to 65 ft (20m) line-of-sight
  • [Personalize Performance] Discover WIDI App (iOS/Android) for lifetime updates, automatic group learning and personalized settings. Optimize performance for latency or jitter. Create MIDI merge/split setups via Bluetooth MIDI groups with up to 5 devices
  • [!! Attention !!] General Bluetooth pairing does not work for Bluetooth MIDI. Update firmware via WIDI App first. Follow the exact pairing instructions for optimal performance. Get 24/7 support via bluetoothmidi(dot)com

Description

Explore >>>>>> Get reliable support directly from the manufacturer, including manuals, quick start guides, firmware updates, and helpful resources. No matter your MIDI device, WIDI wireless MIDI is all about taking away the barriers. Easily pair mobile devices, computers, USB MIDI controllers and your traditional MIDI hardware without any hassle. Enjoy 2-way communication between all your digital instruments and devices. Simply plug, pair and play. WIDI was developed at the request of our Community of MIDI Enthusiasts. Working closely with real people has really made a difference. Therefore, WIDI sold more than 40,000 units in its first year... Our goal is to improve the Bluetooth MIDI standard and bring back unified communication between all MIDI instruments. Just as the MIDI protocol was intended to be... Innovation does not happen over night. Creating the Bluetooth MIDI standard is our daily job. People who have tried WIDI come back for more! WIDI Uhost unlocks two powerful use cases: turn your class-compliant USB MIDI keyboard, controller, or sequencer into a wireless device, or bypass the limitations of your computer, tablet, or smartphone’s built-in Bluetooth. No drivers. No cable clutter. Just fast, reliable wireless MIDI. Streamline your setup and simplify your signal flow. WIDI enables direct wireless Bluetooth MIDI connections between your devices, reducing cable clutter and making it easier to build, adjust, and expand your workflow. Spend less time routing - and more time creating. MIDI transmits data at a standard rate of 31.25 kbps via cable. WIDI products go up to 400 kbps. With CME’s Smart Connectivity Algorithm (SCA), latency can be as low as 3 ms between two WIDI devices, while maintaining stable 1ms jitter performance up to 20 m (65 ft) line of sight. Pair two WIDI adapters automatically. Create fixed connections via the WIDI App that reconnect instantly as configured—no computer needed. Connect a Bluetooth MIDI controller to MIDI hardware with one WIDI adapter. Automatic reconnection keeps your setup ready after power cycling. Connect your phone, tablet or computer directly to MIDI hardware with one WIDI adapter. Enjoy reliable Bluetooth MIDI with no drivers required. Get reliable support directly from the manufacturer, including manuals, quick start guides, firmware updates, and helpful resources. Split and merge wirelessly with up to five devices - including third-party Bluetooth MIDI gear - via advanced WIDI Groups. Begin with a basic setup and grow your system as your workflow evolves. Create fixed pairs and run multiple groups simultaneously that auto-connect on the fly. WIDI Master WIDI Jack WIDI Uhost WIDI Bud Pro WIDI Thru6 BT H4MIDI WC U4MIDI WC

Brand: CME


Compatible Devices: Android via Bluetooth MIDI integrated apps, Pair automatically with other WIDI devices and standard BLE MIDI Controllers, Pair manually with iOS and macOS., USB-C MIDI Class Compliant Host Port + USB-C Client Port for iOS, macOS, Android, Windows, Linux, ChromeOS, Works with Windows 10/11 via Korg BLE MIDI Driver See more


Supported Software: Works with all Bluetooth MIDI software – For non-Bluetooth MIDI programs, simply add bridge apps such as midimttr (iOS), MIDI BLE Connect (Android), or the Korg BLE MIDI driver (Windows) to enable full compatibility. See more


Connectivity Technology: Premium Bluetooth MIDI, USB-C Client macOS, iOS, Windows, Android, Linux, ChromeOS, USB-C Host Compatible with "class compliant" USB MIDI devices via USB OTG cable See more


Number of Channels: 16


Compatible Devices: Android via Bluetooth MIDI integrated apps, Pair automatically with other WIDI devices and standard BLE MIDI Controllers, Pair manually with iOS and macOS., USB-C MIDI Class Compliant Host Port + USB-C Client Port for iOS, macOS, Android, Windows, Linux, ChromeOS, Works with Windows 10/11 via Korg BLE MIDI Driver


Supported Software: Works with all Bluetooth MIDI software – For non-Bluetooth MIDI programs, simply add bridge apps such as midimttr (iOS), MIDI BLE Connect (Android), or the Korg BLE MIDI driver (Windows) to enable full compatibility.


Connectivity Technology: Premium Bluetooth MIDI, USB-C Client macOS, iOS, Windows, Android, Linux, ChromeOS, USB-C Host Compatible with "class compliant" USB MIDI devices via USB OTG cable


Number of Channels: 16


Operating System: Compatible OS via Bluetooth - With iOS, macOS and Android via integrated BLE MIDI. With Windows 10/11 via Korg BLE MIDI drivers., Compatible OS via USB - macOS, iOS, Windows, Android, Linux, ChromeOS


Audio Input: USB


Item Weight: 19.87 g


Brand Name: CME


Number of Items: 1


Item Highlight: Make USB MIDI Gear Wireless, Connect Controllers & Instruments Cable-Free, Plug, Pair & Play, Ultra-Low 3ms Latency


Manufacturer: CME


Global Trade Identification Number: 80


Unit Count: 1 Count


Item Type Name: Wireless MIDI over Bluetooth for USB MIDI


Model Number: WIDI Uhost


Manufacturer Part Number: S-WU00B11


Warranty Description: 1 year manufacturer.


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, Oct 24

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

    • Works flawlessly with Roli Piano (Lumi Keys)
Set name: WIDI Bud Pro
Windows 11's built in Bluetooth has weird quirks & limitations with Roli Piano (Lumi Keys) and most midi Bluetooth controllers. The Widi Bud Pro worked flawlessly after performing the USB and Bluetooth firmware update. I recommend being very close to the Widi Bud Pro when updating the firmware with your phone. Roli is now instantly recognized the second I turn it on. I can't notice any sort of lag whatsoever It's almost as if the unit is plugged in via USB when it's not. Simply amazing! I finally found the solution I'm so happy! ... show more
Reviewed in the United States on July 5, 2026 by Sammy S
    • Perfect Bluetooth MIDI fix for iPad 9th Gen & Donner DDP-80
Set name: WIDI Uhost
If you own a Donner DDP-80 and use an iPad (9th Generation) for lessons like Piano Marvel, this is the solution you need. We switched to this because the iPad 9th Gen only has one port; using this Bluetooth adapter allows us to connect the piano and charge the iPad at the same time. The Highlights: Zero Latency: I was worried about a delay between hitting a key and the iPad registering it, but the response is instant. There is no noticeable lag. Visual Feedback: A blue light on the WIDI flashes with every keystroke, confirming the signal is active. Cleaner Setup: It removes the bulky USB cable between the piano and tablet. Children broke a few of these... The Trade-offs: Price: A bit pricey for an adapter. Power: It requires its own separate power cable to stay active. Note: This is an honest review based on my personal experience; I am not affiliated with the company and this is not a paid advertisement. Quick Setup Guide: App First: Download the CME WIDI app. Pairing: Hold the small button on the side of the device to connect via Bluetooth. Firmware: Use the app to run the firmware updates. Important: There are two separate updates to complete! Launch Lessons (App): Open Piano Marvel. It detects the device automatically and works perfectly. It’s an investment, but it’s the best way to keep the iPad charged during long practice sessions on the DDP-80. ... show more
Reviewed in the United States on January 13, 2026 by kwoodson
    • Works great.
Set name: WIDI Jack
The device is exactly what you'd want for a point to point wireless MIDI connection base station. Used in a system with CME's WIDI-core remote module, it pairs reliably. Latency is as advertised (3mS) in any reasonable signal condition but seems to increase a bit right before you reach range limits. The overall range of the is not huge, but certainly adequate. A range improvement could be had using the CME WIDI-core module which uses an external Bluetooth antenna, if you have room for that (which I didn't). Bluetooth paring is always a sketchy business, but in normal operation this kit is as good as I've seen and will not be an issue. The only troubles I had were during the external firmware development process where I smacked it around in ways that would not be found in normal operation, so I don't count that against CME. CME handles the acquisition and loss of lock to the remote system well: it seems to provide "ALL NOTES OFF" on loss of lock and at first acquisition of lock. This is vital to avoid embarrassing stuck notes. All in all, very satisfied and will use CME's products in future projects. ... show more
Reviewed in the United States on January 8, 2024 by Lucy H.
    • WIDI Master: tricky installation but impressive technology
Set name: WIDI Master
For Android, its quite complicated to setup the WIDI device. First, the firmware must be updated with the WIDI app, and sometimes de WIDI device it's not even detected by the Android phone, so one or more resets are required. Then, another app for Bluetooth MIDI must be installed in the Android Device ("Bluetooth MIDI Connect" or "MIDI+BTLE"). Once the connection is established with that app, there must be another app installed that can receive and send MIDI messages through Bluetooth. So it's quite and hit or miss process to find one that works. So far, "MIDI Keyboard", "MIDI Sequencer" and "Super MIDI Box", are the only ones that have worked for me. Even "Roland Zenbeats" does not detect the external MIDI device via Bluetooth. Guess Android's Bluetooth implementation requires some fine tuning still. However, when the setup works, it's quite impressive. The MIDI messages are so small, that there's no latency at all. You play the keys in your smartphone, and the sound comes out from the external MIDI sound device with the WIDI connectors installed, almost inmmediatly. The best use for me, is to create a MIDI sequence and put it to play in loop while I jam with other instrument. No need to invest in a hardware sequencer. However, the downside is that the setup is not 100% reliable: sometimes there are ghost notes, and sometimes the sound freezes or stops and you need to reset everything. Maybe not too reliable for live playing at this moment, but wonderful for fun at home. I guess in iOS devices, those problems are rare. Anyway, the price tag is low enough to justify the purchase. ... show more
Reviewed in the United States on September 5, 2022 by The honorable
    • Original OP-1 & EP-1320 Bluetooth MIDI upgrade 👏
Set name: WIDI Uhost
Review Image by Joshua J. Salles
Review Image by Joshua J. Salles
I've been wanting to experiment with MIDI more but am limited by USB MIDI on the OP-1, so I finally decided to try out CME WIDI and I am very pleased with how simple it was to set up both WIDI K.O. II plus the WIDI Uhost together. The user guide could use some work because they're trying to account for all of the WIDI devices (which to be fair are practically identical in how they're set up) but it was very alarming at first when all I had to do was update them to get them working properly with each other. I am now having loads of fun figuring out the possible MIDI route setups and I only wish the WIDI Uhost was able to be powered by the OP-1 as it does with the OP-Z. The WIDI K.O. II has been fun to swap between the EP-40/EP-1320 and I already want another one as they look great with the added Medieval stickers! I was not expecting the WIDI Uhost to practically be the size of a quarter, it's very tiny and comes with a magnet to attach to stuff so hopefully it won't get lost but I guess that just makes it also super portable. I've had no issues to report so far, I will know more once I am able to start pushing MIDI to it's limits but it's been able to keep up with whatever I throw at it - in either direction. 10/10 would buy again - especially used, for the discount 👍 ... show more
Reviewed in the United States on September 9, 2026 by Joshua J. Salles
    • A real life saver
Set name: WIDI Bud Pro
I am using this with: Windows PC Android Tablet Meta Quest 3 and Quest 2 VR headset (PianoVision app) -I have a Kawai digital piano and did not want to run a USB cable around to my devices. However, I had trouble connecting my piano's Bluetooth to anything other than official Kawai apps. Windows requires 3rd party hacks for Bluetooth MIDI and they do NOT work well. -This device saves me the headache on everything. I had some troubles updating the firmware but eventually got it squared away. Once I had set the device up, it's SUPER easy. Just plug it into any device, the piano immediately connects with no noticeable latency, and it stays connected. It bypasses your devices bluetooth stack all together which is great, because many android apps don't support bluetooth midi. Please note - when I move my receiver 8 ft from my piano it starts to cut out notes. This is most likely a limitation on my piano's bluetooth transmission power, but something to keep in mind. I highly recommend this product. I would have given up on using my keyboard's bluetooth midi if i hadn't found this device. ... show more
Reviewed in the United States on December 11, 2023 by Zach B.
    • Appealing in theory, but many pitfalls!
Set name: WIDI Master Blue
I bought these to send MIDI to my guitar pedal board from my MPC Live, and to transmit note data from a Roland SPD drum pad to the MPC Live. These mostly work good at home, but take caution: 1. Prepare for these to fail when playing out! As with any consumer-grade wireless music tech, this is hopefully intuitive to you. Bring a long-enough backup MIDI cable. Bluetooth operates on the 2.4GHz frequency band which can be unpredictably noisy outside of a controlled environment. Despite working great at home, I could not connect to the WIDI Master out of three shows I played in small DIY venues. If you absolutely must risk it, bring an extra MIDI cable or two when it fails to connect. 2. Limited options for powering the device: Drawing power from the MIDI Out port of your device is *the only way* to power the WIDI Master. This design is hacky as MIDI output ports are not universally designed to power other devices, even though popular products like MIDI Solutions boxes use the same design. In theory you could power the WIDI Master from a different pedal's MIDI Output port, but a) the cable is short and flimsy, and b) my Strymon pedals don't present power on their output ports. I ended up returning one WIDI Master for a WIDI Jack which can be powered by USB-C. 3. Limited use as a wireless MIDI "receiver". Not every MIDI device has an Output port. This is probably best for sending MIDI from a keyboard to e.g. a DAW. I wanted to send MIDI wirelessly from my MPC Live to my Line 6 Helix Stomp, and pass that MIDI data through to other pedals on my board. But, because I had to sacrifice the Helix's Output port to power the device, I couldn't send MIDI data from the Helix to other pedals. 4. Uncommon adapter cable form factor: The WIDI line of products uses 2.5mm TRS MIDI cables, which are proprietary as far as I can tell. As a consumer you are basically stuck with buying adapter cables from CME. With the increased popularity of 3.5mm TRS MIDI in the past several years, it would have been nice if CME used the same form factor. The smaller size feels more fragile than the 3.5mm "standard" 5. I noticed occasional latency when transmitting from a Roland SPD drum pad to my MPC Live. It's somewhat rare, but not great if you are playing percussion as timing is crucial. All in all, these are convenient, but you should consider *how* you are going to use this in practice. Again, do not rely on this for performing. If you're like me and primarily need this as a MIDI "receiver", you will sacrifice the Output port on whatever device you want receiving that data. The appeal of using one less cable is great, but consider the risk/reward! ... show more
Reviewed in the United States on August 3, 2026 by Gerard
    • GREAT Product that made my life much better!
Set name: WIDI Master Blue
I use these to control program changes with my Kemper Rack using an Android phone and Band Helper app. I have MIDI commands associated with each song. When a song is selected in the set list, the correct patch and settings are setup automatically (and wirelessly) on my Kemper. I have them plugged into the back of an SKB roto molded 3 space case with my Kemper and the distance is great. I have been up to 50 feet away without any problem (that's as big a stage as I am likely to ever play on anyway :) ). These were easy to setup and get working. Worked great on my Android tablet. I do have to pair it every time through Band Helper (once a power up), but it has been rock solid (not drops, no misses). Well worth the money. ... show more
Reviewed in the United States on November 11, 2025 by Louis Scott Bolt

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