
Transmitter is electrically powered. Remote control receiver is powered by the AC adaptor (included, plugs into standard household outlets 120V AC). Remote control receiver also runs on battery power (9V alkaline battery - not included). Requires one PR12 light bulb (included). An adult must install the battery (if used) and replace the light bulb. Tool needed for battery installation and light bulb replacement: Phillips screwdriver. Soothing Dreams Monitor with Remote Control TM Model Number: 7