433Mhz self-powered lighting switch and receiver, control your lights or other devices from the comfort of your bed, sofa or armchair without getting out of bed.Easy to install and provides more flexibility in daily life. feature: Simply use double-sided tape to stick the switch anywhere you want, no additional wires needed. Self-powered switch, no need for wiring and batteries, energy-saving and convenient. Control your lights or other devices by simply lying comfortably on your bed, sofa or chair instead of getting out of bed. br>Provide more flexibility to control devices in daily life. Suitable for all types of household appliances, suitable for home, office, hotel, etc. WHZ01 Type: Single remote control Operating voltage: 85-240V Operating frequency: 433.92MHZ Total charging power: 10A Remote control distance: 20 meters