IK Multimedia iRig BlueBoard, Bluetooth MIDI pedalboard (10m range), 4 backlit rubber pads for sending program, bank and other MIDI messages, 2x 6,3mm jack inputs for optional expression pedals or switches that can used for sending continuous controller or on/off messages, BlueBoard iOS app runs in background on mobile device or Mac, and translates Bluetooth messages to MIDI, Runs on 4x standard AAA batteries, dimensions WDH: 275 x 92 x 25 mm, weight: 250 gr., iRig BlueBoard is compatible with iPhone 5, iPhone 4S, iPod touch 5th generation, iPad 4th generation, iPad 3rd generation and iPad mini. iOS 5.1 or later is required. Computers: any Mac that supports Bluetooth 4.0 / Bluetooth Low Energy. Models: iMac, Mac Mini, MacBook Air, MacBook Pro (all models from June 2012 on). Compatibility may change without notice