Lairun Roll Up Piano, Portable Flexible Electronic 88-Key Piano, Electronic Hand Roll Portable Piano with 128 Unique Tones, Hand Roll Piano Roll Up Keyboard Piano Foldable Piano for Adults(1#)

Rechargeable function (external replaceable lithium battery), no longer have to worry about running out of electricity when going out to play, let alone buy a battery and spend money. Thick design, black keys raised by 9mm [black keys are higher than white keys], making playing more comfortable. Waterproof design of keys and anti-interference technology avoid trouble of being easily disturbed by outside world. Professional audio structure design, strong dual magnetic speakers, more lifelike, clear and crisp treble, deep bass. Touch function control panel and electronic volume buttons are easy to use and durable.