... SWITCH: OVER DRIVE ON/OFF Name:20W professional electric guitar amplifier speakerModel No.:JX-6520POWER CONSUMPTIONS:20WSWITCH:OVER DRIVE ... manufacturer,major in producing acoustic guiar,classical guitar,child guitar,electric guitar,violin,bass guitar,ukulele,amplifier,accessory etc.2.Main MaterialMaily ... ---Jixing musical instrument co.,ltd. 20W professional electric guitar amplifier speaker