Blackstar ID Core Beam 20-Watt Stereo Acoustic, Electric and Bass Guitar Amplifier (IDCOREBEAM) Portable stereo combo amplifier with Bluetooth playback 6 guitar amp voicings and built-in effects including reverb, delay, and more Dual 10-watt power amps for true stereo sound 2 x 3" speakers Patented ISF tone shaping lets you capture the sound of American amps, British amps, or a blend of both