Features: and . 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. Specifications: Color: Black,White,Silver 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 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 Packing list: Hand Roll Up Piano *1 USB Cable *1 Note: Please refer to the measurement. Tiny measuring error is allowable in normal range. There might be a little color difference due to the monitor, camera or other factors, please refer to the physical item. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.