37 black and white keys with external microphone. The keys are composed of 37 scales, the size of the keys just fits the baby's fingers. the microphone to the electronic organ, sing while playing, and open the door to music. 2 tone/volume adjustment/ rhythm music/pause button/two demo songs/beat. It can be heightened as the child grows, and the disassembly is simple. Specifications: HD sound quality, no noise. An electronic piano with a microphone.Sing and play. The key function panel is diverse, the function is diverse. Dual power supply mode: No. 5 battery or purchase power supply line. Name: Electronic Organ. Product size: 35*20*19 Material: ABS material, electronic components Color: pink/blue Battery: No. 5 battery or purchase power cord Package Included: Mini piano set*1