GUITAR AMPLIFIER POWER CONSUMPTIONS: 20W JACK: HEADPHONE OUT/PUT,CD INPUT ... classical guitar,child guitar,electric guitar,violin,bass guitar,ukulele,amplifier,accessory etc.2.Main MaterialMaily using good wood and ... strict quality control for each product to comfirm to supply product in high-quatity.Promise offer the best quality ... Do the best ---Jixing musical instrument co.,ltd. guitar amplifier