Portable 49 Keys Flexible Roll Up Piano Electronic Soft Keyboard Piano Rubber Keyboard Features: 49 keys soft keyboard. (Standard Piano Key 4 Octave + 1 key) On the of it, there are , drum, sound effects, chords and learning function keys for you to adjust the modes conveniently. Has 8 drum modes, for one mode, 16- volume control, 32- control, and power saving sleep mode. 16 tone functions. 10 options. Built-in 6 songs for your appreciation and learning. Recording and replaying functions, Comes with headphone port (3.5mm) and power port. Convenient for rolling up to store and carry, you can play anytime, anywhere. It is suitable for beginners or more advanced students. Specifications: Material: rubber (keyboard); ABS plastic (control panel) Tone: 16 Demonstration Songs: 6 Rated Voltage: 4.5V or Battery AA 1.5V x 3pcs(Batteries are not included) Power Adapter: 4.5V, 0-1000mA, Item Size: Mainbody: 10.5 x 22.5 x 2.7cm / 4.1 x 8.9 x 1.1in (L x W x H ) Keyboard: 73 x 17 x 0.3cm / 28.7 x 6.7 x 0.12in (L x W x H) Item Weight: 632g / 22.3oz Package Size: 28 x 18 x 7cm / 11 x 7.1 x 2.8in (L x W x H) Package Weight: 856g / 30.2oz Contain: 1x electronic piano