What we have to say:
What Yamaha has to say:
Bluetooth wireless MIDI adaptor for connecting instruments with MIDI IN/OUT terminals to your iOS devices (iPhone/iPad/iPod touch) or Mac
Product Specs:
OtherPower ConsumptionNoteSpecificationsCompatible DevicesCompatible OSSize/WeightDimensionsWeight MD-BT01 Other Power Consumption 26mW Note Bluetooth (Ver4.0; GATT compatible), MIDI over Bluetooth Low Energy - Compliant Specifications Compatible Devices iPhone/iPad/iPod touch, Mac with Bluetooth 4.0 installed Compatible OS iOS 8 or later, OSX Yosemite or later Size/Weight Dimensions 17 mm (W) × 17 mm (H) × 67 mm (D) (includes connector portion) Weight 23g