Yamaha PSS-A50 Touch Sensitive Portable Keyboard Big, pro-level sounds in a small body. Cool effects and creative control. Everything you need to make your kind of noise. The Yamaha PSS-A50 is a versatile keyboard, perfect to start learning on as a beginner, or as a travel keyboard for people who need something for recording or music production due to the USB-MIDI connection. Accessory List: Owners manual, USB cable Depth: 54 MM Compact keyboard with 37 touch sensitive mini keys 42 built in instrument voices 138 arpeggio types with the built in arpeggiator Phrase looper allows you to record a loop for playback. USB-MIDI connection allows for recording using external instruments on a computer. Please note: power adaptor is not included. Height: 506 MM Power Type: Battery Width: 201 MM