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