Wireless Kinetic 2 Gang Switch (Silver body)Wireless light 2 Gang Switch (Silver Finish), No Battery No Wiring No Wi-Fi Required,Easy to Install On/Off,Self-powered Kinetic Remote Controlled Light Switch for Lights, Fixtures and other ElectronicsSelf-powered and Safe: ENER-J's Waterproof Kinetic Switch requires no batteries and no power connection. Just push the switch and build a safe and environmentally friendly kinetic energy. Even your child can safely use it in a humid environment or even outdoors. Kindly please note: This power switch is an additional remote control of the ENER-J's kinetic wireless switch kitRange and Usage: The effective range between transmitter and receiver (not included in the package) is approximately 30 meters indoors and approximately 160 meters outdoors. ENER-J receiver (not included in the package) can connect to multiple ENER-J switches. Ideal to control your garden house, outdoor lighting from the comfort of the house!Never route power cables, ready fo