The Jelly Beamer wireless switch can be used with any switch-adapted toy or device. It has a wireless transmitter and receiver. Turn both components on, plug the receiver into the switch-adapted device and you're ready for wireless access. Beamers are paired with their own devices, so multiple devices can be used in the same room at the same time without interference. Effective range is up to 30 feet. Switch also includes four interchangeable twist tops. Transmitter and receiver require two AA batteries each.