These awesome Bongo Drums feature vibrant lights and fun music. They have been switch adapted to accept a standard 1/8" (3.5mm) switch. But they also can be played with by able-bodied peers by pressing the buttons. Plug in your external switch, sold separately, to start the lights and music. Press and release your switch to start a song, press and release the switch again to change to another song. Automatically goes off after a few minutes without any interaction from the user. Great for visual and auditory stimulation, but also teaches more advanced cause-effect and encourages movement. May not be suitable for individuals who are prone to seizure activity. Has 2 volumes and requires 2 AA batteries, included.