... 3.Color:red 4.Usage:Baby learning 5.OEM/ODM are available Electronic Music Pad for Children SpecificationInput Voltage4.5V(3pcs ... 5cm HButton Qty34 pressing buttons and 22 key buttonsOperationPressing for soundAudio FormatMP3,WAVAudio Duration3-270s, even more if needed ... .Sound OptionsVarious sounds/voices of animals, birds, vehicles, baby and songs.ComponentsPlastic box, printed label, PCB, IC, ...