This small, robust electric guitar amplifier from Stagg is perfect for practising at home or giving your performances an extra boost, whether you are performing indoors or out without having to carry around a large bulky amplifier.The Stagg 20W bass guitar amplifier has a 6.3mm stereo jack input for your MP3 player allowing you to play along with your favourite tunes or backing tracks. The compression control reduces the dynamic range of the output signal and evens out the changes in volume that occur according to how hard you play your instrument. Adding compression will make your bass sound smoother and clearer.The 6.3mm headphone jack makes the Stagg 20W bass guitar amplifier perfect for practising at home or in the classroom.20W RMS bass guitar amplifier with built in compressor3-band EQ (bass/middle/treble)3.5mm input for CD/MP3 player6.35mm headphone output Volume and compression control. Carrying handle