Specifications:

Material: Silicone rubber (keyboard); ABS plastic (control panel)
Tone: 16
Rhythm: 10
Demonstration Songs: 6
Rated Voltage: DC 4.5V or Battery AA 1.5V * 3pcs(Batteries are not included)
Power Adapter: 4.5V, 0-1000mA, US Plug
Item Size: Mainbody: 10.5 * 22.5 * 2.7cm / 4.1 * 8.9 * 1.1in (L * W * D)
Keyboard: 73 * 17 * 0.3cm / 28.7 * 6.7 * 0.12in (L * W * D)
Item Weight: 632g / 22.3oz
Package Size: 28 * 18 * 7cm / 11 * 7.1 * 2.8in (L * W * H)
Package Weight: 856g / 30.2oz

Packing list:

Hand Roll Up Piano*1

USB line*1