Feature: 1. Multi Functional: The electronic piano keyboard is suitable to be the first primary keyboard, has basic and some advanced functions 2. Cultivate Interest: Allows children to understand and learn the most basic knowledge of music, and cultivate children's interest in music 3. Suitable Length: The electronic piano keyboard has 37 keys, and the length of the mini keyboard is suitable for toddlers and children 4. Mini Keyboard: Suitable for children’s small hands, when playing the piano keyboard, don’t worry that children’s fingers are not long 5. Environmental Friendly: Can be plugged into an outlet for charging, can also use four AA batteries, which is more durable Specification: Item Type: Kids Electronic Piano Material: PS Size: Approx. 56 x 18.5 x 6cm / 22.0 x 7.3 x 2.4in Power Supply Mode: 4 x AA battery (Excluded) USB cable Having 10 demo songs, 8 tones, and 6 rhythms Functions: Recording, playback, volume, animal sound effects Package List: 1 x Kids Electronic Piano 1 x USB Cable 1 x User Manual How to use: Charge it directly or install a battery to play