Features: *No matter what your age or skill level, this roll up piano is a great gift idea. *Despite its small size, you still get high-quality sound with 16 tones, 10 rhythms and 6 demo songs. Dual speakers produce high-quality sound and support external headphones or speakers. *Using the USB MIDI port, you can easily connect the piano to the computer. *Rechargeable piano: 1000mHa rechargeable batteried provides up to 10 hours of continuous playing time. *1000mHa rechargeable batteries can provide up to 10 hours of continuous playing time. *Easy to store when traveling! Portable, stylish and easy to carry. The thickness of the keyboard is 9mm for the white keys and 11mm for the black keys. Notice: *Actual color may be slightly different from the image due to different light effect *Please allow 1-3cm deviation due to manual measurement *49 keys soft keyboard. *On the surfaces of it, there are rhythms, sound effects, chords and learning function keys for you to adjust the modes conveniently. *Has 8 drums modes, one key for one mode, 16-level volume control, *32-level rhythms control, and power saving sleep mode. *16 tones functions. *10 rhythms options. *Built-in 6 demo songs for your appreciation and learning. *Recording and replaying functions, *The sound of built-in speaker is fruity and melodious, illuminated volume control. *Comes with headphone port (3.5mm) and power port. Specifications: Material: Silicone rubber (keyboard); ABS plastic (control panel) Tones: 16 Rhythms: 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 Keyboard: 73 * 17 * 0.3cm Package List: 1 x Hand Roll Piano