Features: Electronic keyboard piano with a 37-key mini keyboard, you can interpret different music styles with 2 timbres. Compact structure lightweight beautiful appearance, easy to use and carry around. With 16 demonstration songs, you can choose to let the piano sing continuously or on demand. With two volume buttons, the volume can be adjusted at will. With a mini microphone, it supports microphone function. Powered by 3*AA battery (not included) or via USB connection, long service time, supports indoor and outdoor use. Suitable for interest cultivation, parent-child interaction, imagination creation, and talent training, play anytime. Specifications:Material: ABS Color: Pink / Blue / Black / Green / Yellow (Optional) Power Supply: 3 * AA Battery (Not Included) / USB ConnectionCable Length: 90cm / 2.95inItem Size: Approx. 41*15*4cm / 16.14*5.91*1.57inPackage Size: Approx. 41*15*4.5cm / 16.14*5.91*1.77in Package Weight: Approx. 484g / 17.07oz Packing List:1 * Electronic Keyboard Piano1 * Mini Microphone Note: The electronic keyboard piano is shipped randomly between the normal version and the upgraded version, please prevail in kind, thank you. Normal Version: 16 demonstration songs, 2 timbres, 4 instrument effectsUpgraded Version: 10 demonstration songs, 4 timbres, 5 instrument effects