49 keys soft keyboard. (Standard Piano Key 4 Octave + 1 key) On the surface of it, there are rhythm, drum, sound effects, chords and learning function keys for you to adjust the modes conveniently. Has 8 drum modes, one key for one mode, 16-level volume control, 32-level rhythm control, and power saving sleep mode. 16 tone functions. 10 rhythm 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, fully adjustable, illuminated volume control. 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. 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 Keyboard: 73 * 17 * 0.3cm Item Weight: 720g Package Size: 28 * 18 * 7cm Package Weight: 900g