Features: This multi-function keyboard piano is designed for beginners, with 61 mini-sized keys, suitable for children aged 1-6 years old, promote the development of children's listening and stimulate their interest in music. 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 4pcs 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: Model: MQ-6104 Material: ABS + Electronics Color: as picture shown Keys: 61 keys Timbre: 16 Percussion Sound Effect: 8 Beat: 10 Demo: 6 Display: LED Battery Power: 4*1.5V AA battery (not included) USB Charging: 5V 500mA Size: 66*19*5.5cm/ 26*7.5*2.2inch Package List: 1 x Electronic Keyboard (no battery) 1 x Microphone 1 x Score Holder 1 x USB Power Cable 1 x Manual . Note: Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering. The product is a single speaker, only applicable to 5V1A common connector connection use. Can not use higher current fast charging head easy to burn the line.