CME WIDI Master

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Bluetooth MIDI Adapter

Wireless MIDI system using Bluetooth 4/5
Low latency (3 ms)
Easy to set up thanks to automatic pairing
For the transmission of all MIDI messages, including MIDI clock and SysEx data
Powered via a MIDI Out DIN (3.3/5 V)
Direct connection with Bluetooth MIDI devices (BT controllers, iOS-/MacOS devices with BT4 or later)
2x CME WIDI Master are required for the bidirectional connection of MIDI devices
1 MIDI output (5-pin DIN)
1 MIDI input (5-pin DIN)
Main device dimensions : 21 x 21 x 49 mm
Sub device dimensions: 18 x 18 x 24 mm

30-Day Money-Back Guarantee

3-Year Thomann Warranty

Available since September 2020
Item number 503234
Sales Unit 1 piece(s)
Wireless MIDI Yes
Midi Thru Yes
MIDI Merge Yes
MIDI Controller No
MIDI Converter / Interface Yes
MIDI Elektronic No

55 €

All prices incl. VAT

Sales Rank

in MIDI Tools

Future-proof MIDI wireless set

The CME WIDI Master is a compact, high-performance Bluetooth MIDI adapter that transforms any standard MIDI instrument into a wireless controller. It's simple to use and offers a smooth playing experience thanks to its ultra-low latency of just 3ms. Compatible with Bluetooth 4 and 5, it pairs automatically and works seamlessly with modern devices. Its Bluetooth 5 connection offers a range of up to 20 metres. Both transmitter and receiver feature the familiar five-pin DIN connector for easy integration with existing gear. No batteries are required, as it draws power directly from the MIDI Out port – either 3.3V or 5V depending on the device. With support for the new MIDI 2.0 standard, wireless firmware updates, and lifetime updates from the manufacturer, the WIDI Master is a forward-looking investment for any setup.

One-way, but expandable

In addition to note and velocity data, the CME WIDI Master transmits all MIDI messages, including MIDI clock, control changes, SysEx, and even complex MPE data. However, users should note that MIDI Thru and MIDI Merge functions aren't supported. Also, this wireless setup is unidirectional by default: To create a two-way MIDI connection, a second WIDI Master is required – simply reverse the sender and receiver roles. Fortunately, its smart radio tech minimises interference even when running multiple units at once. Best of all, the WIDI Master delivers professional-grade performance despite its plug-and-play design – the result of real-world input from musicians.

Ideal for flexible cable-free rigs

The WIDI Master is perfect for users with Bluetooth-enabled controllers or for those working with iOS and macOS devices that support Bluetooth 4 or later. It's a great choice for keyboard players looking to cut the cables between MIDI keyboards and sound modules. Guitarists using MIDI foot controllers to manage amps or effects can also benefit from more freedom on stage and in rehearsal spaces, thanks to the WIDI Manager app. It's also handy for quickly switching a master keyboard between different synths – no more tangled cables trailing across the floor. Switching setups is quick and easy: All the user has to do is plug in the receiver, pair, and they're ready to play. Those with a growing synth collection will find this flexibility especially appealing.

About CME

The Chinese manufacturer CME produces MIDI controllers and is committed to making music production an unforgettable experience for musicians. To this end, the company has brought WiFi-capable MIDI interfaces, which it calls "WIDI" devices for short, to the market. The company's portfolio also includes wireless MIDI and wireless MIDI-over-Bluetooth interfaces, as well as MIDI-to-USB adapters and wireless keyboards that use these technologies at ultra-low latencies. To ensure that the products are suitable for everyday road and stage use, CME also produces customised accessories, such as waterproof carrying cases, for its devices.

For stage, studio and hotel rooms

With the CME WIDI Master, musicians can streamline their setup by creating wireless connections between master keyboards and expanders or synths. Its discreet transmitter and receiver eliminate the need for long cables, helping to keep rehearsal spaces tidy and free from trip hazards. On stage, even the most energetic performances won't risk yanking a MIDI cable loose. Keytars like the Korg RK-100S 2 can be retrofitted with Bluetooth via the WIDI Master, making them fully functional as wireless master keyboards. It's also an ideal addition to portable songwriting setups, enabling wireless use of a MIDI keyboard with an iPad or MacBook – perfect for composing on the go.

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4.4 / 5

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55 Reviews

Easy to setup, low latency working fine

TheAncient 13.03.2022

You just need the app on android or ios to make the first update. After that it just work out of the box, you connect and zap everything working fine. Automatically connects to any other CME blue tooth and appears in your daw as a blue tooth midi.

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really good

yeahh 18.10.2021

There is no midi connection with a zero latency so yes there is a little, but wire free playing is covering that for my part :) If you're not too far from the source it works perfect! If not it still works but the latency increases ofcourse... I actually performed with it on a big stage and it worked without a problem..

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Dissapointed

DimitrisK 14.02.2024

I have 3 Widi Master pieces but I can’t trust any of them! They crash all the time!! The best choice is Quicco Sound only. I use Mi.1 1st & 2nd generation always live and I never had any problem at all!!!

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midi connection

Yesterday 95 03.11.2020

easy to use connect to your equipment and control parameters with a Genki ring, or connect to your pc or other blue tooth kit

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CME WIDI Master

Bluetooth MIDI Adapter