Check the listing for details. Yamaha MD-BT01 Bluetooth Wireless MIDI Interface. Condition: Very Good - Refurbished. Listed at 49.49 USD. Wireless MIDI Adapter for iOS and Mac Want to connect your favorite MIDI keyboard, synthesizer, or sound module to your iPad or Mac for wireless MIDI transmission? The Yamaha MD-BT01 Bluetooth wireless MIDI adapter is just what you need. Its MIDI In and Out connectors are marked with arrows for easy identification: simply connect them to the corresponding In/Out MIDI ports on your instrument, and the MD-BT01 will show up as a Bluetooth device on your iPad or Mac. Click to connect and you're ready to enter the endless world of MIDI performance and compostion! With ultra-low sub-20ms latency and a range of up to 10m, the Yamaha MD-BT01 Wireless MIDI Adapter is a great way to achieve wireless MIDI capability for stage or studio use.