... : OVER DRIVE ON/OFF Name:20W professional electric guitar amplifier speakerModel No.:JX-6520POWER CONSUMPTIONS:20WSWITCH:OVER ... guitar,electric guitar,violin,bass guitar,ukulele,amplifier,accessory etc.2.Main MaterialMaily using good ... .The last one is covering paint with professional machine.2.This is our showing room ... musical instrument co.,ltd. 20W professional electric guitar amplifier speaker