Blackstar Carry-On FP49 Folding Piano Key Features: Lightweight & compact design that unfolds into a full length 88-key and 49- key piano MIDI over USB for direct-to-device functionality Built-in USB rechargeable battery – up to 8 hours of life on a full charge Listen live with the built-in stereo speaker system Stereo 3.5mm headphone output for ‘silent’ practice Built-in sound engine with 128 voices 128 custom accompaniments, offering a variety of playing style practice Sustain pedal and USB charging cable included Handy travel tote bag included with 88-key model only Get Connected: Internal Li-ion battery is USB rechargeable for additional convenience The built-in metronome has 6 accent settings The 30 demo songs were specially composed to offer a wide range of practice accompaniments To play loud, the 3.5mm headphone out can also be used to plug into the line-in of an external speaker