Carry Along KeyboardPortable keyboard with 24 keys, flashing lights, eight rhythm buttons, eight instrument sounds, four percussion sounds. Product Dimensions: 16. 5 x 1. 5 x 8. 5 inches Batteries 3 AA batteries required. This mighty music maker (with an easy carry handle) lights up as you rock. Jam on a 24 note keyboard with a choice of 8 instrument sounds, 4 percussion sounds and 8 different rhythms. It even records and plays back your compositions.