Bigfun 61 Keys USB Electric Piano With Microphone Digital Electronic

[Easy to Use]: The compact and portable 61 keyboard piano can be powered by 4 x AA batteries (battery not included) and USB power, very convenient for outdoor and indoor use; Press the power on/off button and the keyboard will work [Perfect Gift for Kids & adults]: The musical keyboard is the perfect educational musical toys; Piano keyboards can improve children's intelligence, let them feel the rhythm and beat during the game