Features: Electronic keyboard piano with 37-key mini keyboard, you can interpret various musical styles with 2 timbres. Compact structure & light weight & lovely 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 through USB connection, long service time, support indoor and outdoor use. Suitable for interest cultivation, parent-child interaction, imagination creation and talent training, playing at any time. Specifications: Material: ABS Color: Pink / Blue (Optional) Power Supply: 3 * AA battery (NOT included) / USB connection Cable Length: 90cm / 2.95in Item Size: Approx. 41*15*4cm / 16.14*5.91*1.57in Package Size: Approx. 41*15*4.5cm / 16.14*5.91*1.77in Package Weight: Approx. 484g / 17.07oz Packing List: 1 * Electronic Keyboard Piano 1 * Mini Microphone Note: The Electronic Keyboard Piano will randomly sent between Normal Version and Upgraded Version, please in kind prevails, thanks. Normal Version: 16 demonstration songs, 2 timbres, 4 instrument effects Upgraded Version: 10 demonstration songs, 4 timbres, 5 instrument effects