Features 1、Multifunctional: This 37 keys keyboard piano has 8 built‑in tones, 8 rhythms, 11 demos, 4 percussion instruments, 4 animal sounds, volume and rhythm controls. 2、37 Keys Design: This piano keyboard features a 37 keys design and is an excellent musical toy for boys and girls aged 3 4 5 6 years old, it is the perfect children's toy. The piano works with the left speaker only to produce excellent sound and effects. 3、Fine Workmanship: This 37 keys electronic piano keyboard has fine workmanship, with sleek edge design and flat polished surface, so your child won't get hurt. 4、Excellent Plastic Material: This 37 keys electronic piano is made of excellent plastic material, which is sturdy and wear resistant, not easy to be damaged, and has a long service life. 5、Dual Power Supply: This kid keyboard piano is powered by dual power supplies and comes with a power cord, you can apply USB charging or 3 x 1.5V AA batteries (not included) to power it. Specification Item Type: 37 Key Electronic Keyboard Material: Plastic Color: Black Power: 3 x 1.5V AA Alkaline Batteries (Not Included) or USB Cable Size: Approx. 42.8 x 16.2 x 4.5cm / 16.9 x 6.4 x 1.8in Package List 1 x 37 Key Electronic Keyboard 1 x USB Power Cable