The Mighty 20 BT is a complete rehearsal, live and recording amplifier and effects unit for guitarists. The 8" speaker is powered by a 20W amplifier section. Each of the 4 switchable channels has a choice of 2 digitally modelled amplifier presets with adjustable Gain, Level and 3-band EQ. A digital effects section offers options of 3 modulation, 3 delay and 3 reverb effects with adjustable parameter and tap tempo controls. The Mighty 20 BT also has Bluetooth connectivity for playback of backing tracks and remote control via the proprietary Mighty app. Maximum versatility from a compact and manageable unit with a sound much larger than its own size.