The Roll-up Piano features 61/88 keys, 128 excellent sounds, 128 rhythms, and 20 demos. With a portable and lightweight design, it's perfect for playing on the go. The built-in double speaker provides high-quality sound and supports auxiliary exercises, karaoke, MID, maintenance, recording, USB, external speakers, headphones, and external power supply. It has a well-designed, high-end keyboard with a multifunctional LED digital display tube. An ideal gift for children and beginners. Material: Silicone, ABS. Battery capacity: 1000 mAH. Features 1. Standard 61/88 Key Digital Piano: 128 Excellent sounds, 128rhythms, and 20 demos. A new generation of keyboards and high-speed processors give you a high-performances piano experience. 2. Portable & Light: With an extremely light and fold able design, built in rechargeable battery allows for play on the go for up to 8 hours. Play the fold able piano in your living room, bedroom, or while having a picnic in a park outside 3. Multifunctional: Built-in double speaker The sound is even more shocking, connect the phone to play songs for auxiliary exercises；Connect microphone can be karaoke; Multifunctional interface, support MID, maintenance and recording, USB, external speakers, headphones, external power supply. 4. Well-designed: It has a more powerful function and more gentle and standard tone, black keys higher than white, high-end keyboard thickening sense of perfection and the sensitivity is high. With multifunctional led digital display tube, simple operation. 5. Great Gift: Professional designed for children and beginners ,perfect gift for your friends and kids. Specification Material: Silicone, ABS Color: Black Size: 102 x 22 cm, 138 x 22 cm Weight: 1180 g, 1300 g Battery capacity: 1000 mAH Package Include: 1× Foldable Piano 1× Power Adpter 1× Batery 1× USB Cable 1× Piano Pedal 1× User Manual