Roll up Piano Keyboard, pure piano sound source by France Dream, 88 Key. 88 standard keys as real piano (include black keys), Grand piano tone; With micro USB port, support midi out, can play with software on computer (software include) Support connects with iPad, iphone and other android device; use lighting to USB camera adapter With sustain function, LED indicator, Support USB charging as a power bank; Works with external headphone or speaker, Power supply by universal USB charger (DC5V) and 1000mA lithium Battery inside (include), Certification: CE, RoHS?If you get the product and keys do not work, please be sure to charge the battery(4 hours)before using it. This will bring you a better shopping experience. And wish you all the best. As our valued customer, we will do our best to make sure the product you receive arrives to you on time and as expected. This item is in the category "Musical Instruments & Gear\Pianos, Keyboards & Organs\Electronic Keyboards". The seller is "pink-cab" and is located in this country: US. This item can be shipped to United States.