Linghhang - 2 Pack) Wireless Self-Powered Switch No Battery, rf Transmitter Security Switch and Receiver Controller, 200M Wall Remote Control, 433MHz,

General description Wireless self-powered switch tools eliminate the need for batteries or jumper cables, making them safer, more convenient, and energy-saving. This 2-pack set includes a RF transmitter security switch and receiver controller, allowing you to control appliances from multiple locations in your home. Technical specifications Frequency: 433MHz Indoor control range: 50 meters Maximum control distance (without walls): 200 meters Service life: over 200,000 on/off cycles Estimated lifespan with 4 interruptions per day: 137 years Installation Comes with bilingual instructions for easy installation Includes wall stickers and screws for mounting Can be fixed to the wall without causing damage Usage Can connect up to 5 wireless switches Control appliances from different locations such as bedroom, stairs, bathroom, kitchen, balcony, and basement