Roland EC-10 EL Cajon, battery-powered hybrid cajon, built-in sound module with 30 pre-configured kits, two triggers which recognize bass and edge strokes, front plate made of Sapeli, built-in snare strainer, up to 12 hours operating time with six AA type batteries (optional), can also be used with included power supply, stereo 1/8" jack input to connect mp3- or cd-players, stereo 1/4" jack input to connect speakers or mixer, measures (H x W x D) in cm: 50 x 30 x 30,