Unique Design These storage and transport scenarios are made incredibly simple thanks to an intuitive, entirely foldable design. When folded, the piano measures just 39cm in length - allowing to carry it in a small backpack, or put it away when 've got visitors. It weighs just 1.01kg too, making it a viable lightweight creative option that's ready wherever and whenever inspiration strikes ! Thanks to a USB rechargeable Li-ion battery, 'll even get 8 hours of playing time on a full charge while 're out and about. The Engineering With a design like this, 'd expect there to be some compromises when it comes to feel, sound and performance. However, that's not the case at all. Each of the 49-keys delivers a proper touch and response. The integrated sound engine boasts 128 voices, offering an extensive library of tones to select from. This is bolstered by 128 custom accompaniments and 30 demo songs, which are both especially handy practice tools for mastering various playing styles. 'll be able to improve sense of timing too using the in-built metronome (with 6 contrasting accent settings). If prefer silent practice, a stereo 3.5mm headphone output lets connect favorite pair. Or, if 're looking to perform out loud, use the built-in stereo speakers instead.