CME WIDI Master
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
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Available since September 2020
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Item number 503234
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Sales Unit 1 piece(s)
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Wireless MIDI Yes
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Midi Thru Yes
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MIDI Merge Yes
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MIDI Controller No
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MIDI Converter / Interface Yes
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MIDI Elektronic No
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.
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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.
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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.
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About CME
CME is a Singapore-based innovator and an executive board member of the MIDI Association, developing smart MIDI tools shaped by community feedback. Focused on seamless workflows, the company creates both wireless and wired solutions for modern music makers. With its WIDI Bluetooth MIDI technology and iWA wireless audio initiatives, CME continues to expand what is possible in the hybrid world of audio and MIDI. Its tools — from wireless MIDI interfaces to smart USB solutions — are designed to operate invisibly in the background, allowing musicians to remain fully in their creative flow.
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.
