BT-2 Bluetooth MIDI Pedal Control your guitar effects, music sheets and keyboard presets all wirelessly! Works wirelessly with thousands of music apps including BIAS FX, JamUp, OnSong, GarageBand, Loopymost any iOS app that supports CoreMIDI. Solid, stage-ready controller that gives you the freedom to control your iPhone and iPad apps. BT pedals wireless capability is powered by Bluetooth 4.0, which gives you a wirefree range of 30 feet. Unique metal case and rock-solid design withstand the harshest and toughest conditions on the road. BT pedal Is powered by 2 AA batteries. The batteries are housed on the bottom of the unit. A phillips head screwdriver is required to access them. Fully customizable with the companion BT Editor app, creating at-the-ready banks and presets.