Gsedaox Switch - Wireless Light Switch - Without Battery - Self-Generating - Receiver - Outdoor 100m Range - White Self-PoweredThe doorbell has a self-powered design with a built-in power generation module, no batteries required. DesignWhen friends come to visit, you no longer have to worry about the embarrassing scene of the doorbell not ringing without batteries. Easy to InstallThe mini receiver is 60 * 42 * 28mm. It is placed between the power supply and the device. It can be easily fixed to the circuit board with screws. You can easily install it to control lights or sockets. No wiring is required. Excellent DesignRF 433MHz wireless light switch with its own power supply. You can remotely switch on and off lights or other appliances connected to the relay receiver through the kinetic wireless switch. Signal transmission via radio frequency. Strong signals can pass through walls, floors, doors, etc. Can be operated indoors within a range of 30-50 meters. Long RangeThe self-powered doorbell has a speaker with a range of up to 100 meters. Multi-person ControlEach receiver can hold about 5 wireless switches. So you can share the switch with your family. You can remotely control the devices connected to the receiver. High-quality SwitchThe self-powered wireless switch can be pressed more than 200,000 times. No batteries are required. Safe and waterproof, can be directly installed in the bathroom, kitchen, etc. Wet hands can also touch the wireless switch. You don't have to worry about electric shock and rust due to moisture in the battery. Easy to use and considerate for children and the elderly. Product Specifications: Material: ABS+PC Color: White Nominal Frequency: 433.92MHz Weight: 214g Package: 2 * Switches 1 * Receiver