With 16 kinds of timbre, 8 kinds of percussion instrument sound effect, 10 kinds of rhythm, 6 demos, beat and volume are adjustable. Portable size and double power supply system(USB charging or 6pcs of 1.5V AA battery) make it convenient to be used in both outdoor and indoor. Uses safe and environmental protection materials, the delicate craftsmanship and smooth edges won't hurt the children's fingers. With a microphone, help children to train ability of singing while playing the keyboard. Specification: Material: ABS + Electronics Timbre: 16 Percussion Sound Effect: 8 Beat: 10 Battery Power: 6*1.5V AA battery (not included) USB Power: 9V 500mA Size: 76*20*6cm / 29.9*7.9*2.4inch - 16 Keyboard Piano Tones Piano - 6 Demo Tracks - Keyboard Piano Volume and Tempo option Keyboard Piano - Rhythm programming function Piano - Record Keyboard Piano and Piano playback Keyboard Piano - Keyboard Piano Speaker L/R output and microphone included in Piano - Comes with the detachable Keyboard Piano music stand - Keyboard Piano Best Piano beginner model for kids and Keyboard Piano adults Piano Package List: 1 x Electronic Keyboard Piano 61 Key 1 x Piano microphone 1 x USB charging Piano cable 1 x Keyboard Piano music stand 1 x Piano instruction 6 demos, promote the development of children's listening and stimulate their interest in music.