HIGH QUALITY This standard 61 keys roll up piano made of high quality with environmental silicome keyboard,nontoxic,wear resistance,soft and durable.This product has made the FCC product quality certification.The sounds very crisp,vibrant sound which make you feel The same as real piano.Perfect for children/adult beginners. REASONABLE DESIGN Small size,it can be rolled up, easy to carry,It is equipped with a 1700 mAh lithium battery and can be used continuously for about 10 hours.allow you practice fingering anytime and anywhere.Professional designed for children and beginners.Give your friends and kids a good christmas gifts or birthday present MULTI-FUNCTION 61 Keys hand roll piano build-in loudspeaker,128 International standard tone,128 International standard rhythm.14 demo songs and other sound effects.Single finger chord and multi-finger chord,Build-in rechargeable 1700mAh polymer lithium battery, can be used continuously for 10 hours also.Support external headset so as not to disturb others.This Roll Up piano designed with the special dual speaker, make the sound of the piano is better.USB MIDI output,can be connected to the c EASY to PLAY 61 standard keys piano keyboard easy to play with user manual, restore real piano keys width and key distance, with recording / programming / playback function, professional, easy to play for beginners to practice. WORRY-FREE WARRANTY Simple and Convenient return process. offer 180 days warranty provide and 30 days return without reason.If there is any problem during use please contact us in time,we have perfect service and you will get a satisfactory answer.