IK Multimedia iRig BlueBoard, Bluetooth MIDI Pedalboard, Range: 10 m, 4 Backlit rubber pads for sending program-, bank- and other MIDI commands, 2x 6.3 mm Jack inputs for optional expression pedals or switches, BlueBoard iOS app runs in background on mobile devices or Mac computers and translates Bluetooth messages to MIDI, Requires 4 standard AAA batteries, Dimensions (W x D x H): 275 x 92 x 25 mm, Weight: 250 g, 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 newer required, Computer: All Mac computers which support Bluetooth 4.0 / Bluetooth Low Energy, Models: iMac, Mac Mini, MacBook Air, MacBook Pro (all models from June 2012), Compatibility may change