Feature: 1. APPLICABLE CROWD: This colorful hand rolled piano come with 49 keys, suitable for children and beginners to use, lightweight, portable and convenient 2. FLEXIBLE AND FOLDABLE: The roll up keyboard piano has a foldable design for easy storage and space saving, allowing players to play music anytime and anywhere 3. A VARIETY OF FUNCTIONS: Kids roll up piano built in rich sound, support recording and playback functions, to help learn and practice music skills 4. BATTERY POWERED: The roll up piano can be charged via USB, eliminating the need for frequent battery replacement, which is more environmentally friendly 5. FOR PRACTICE AND PLAYING: 49 Keys roll up piano use a silent design, the sound quality is clear and beautiful, easy practice, let children enjoy the fun of music Specification: Item Type: Roll Up Piano Material: Plastic Size: Approx. 80 x 16cm / 31.5 x 6.3in Battery Type: Lithium battery 500mAh. Package List: 1 x Colorful Roll Up Piano 1 x User Manual 1 x USB Cable