Electric Guitar Amplifier, Mini Electric Amp, Small Portable Amp For, Black POP10 series is specially designed for different instruments , including 3 multi functional amps for 3 instruments , that is , POP10A amp for acoustic-electric guitar , POP10B for electric bass and POP10E for electric guitar. POP10 series features Gain control knob , Tone control knob and one channel or tone mode switch , ensuring different instruments can be adjust comprehensively . Compact and Portable.Amp with Bluetooth function and aux input access,which guarantees pleasant enjoyment out of music while playing your instruments. Two Type Charge Modes.use attached 9V/1.2A power adapter(INCLUDED) or 6 pieces AA batteries(NOT INCLUDED), about 3 hours battery life with AA batteries. A 3.5mm stereo output jack, the loudspeaker mutes automatically when it connects to the headphones.you can use an audio cable to connect with the Aux In Jack for playing accompaniment and enjoying music.