Stable & Reliable Performance - The wireless switch is compatible with a variety of devices such as lamps, fans, curtains, water heaters, etc. This 433MHz radio remote control offers a powerful RF signal transmission function, capable of passing through walls, floors, doors and panels. High reception sensitivity (> - 108dBm). No wiring needed between lights and wireless switch. Easy to install and use - No need for complex wiring! Dimensions: 67 * 42 * 23 mm. Wireless switch can be used for retrofitting or replacing existing switches, and it fits easily into your home. Simply secure the wireless switch with double-sided tape or screws. Wireless remote control socket battery can be replaced after disassembly. Flexible Multi-User Control Feature - Each receiver can store about 10 wireless switches, allowing you to share control with your family. And one transmitter can also control multiple receivers. You can remotely control all devices connected to the receiver from different positions in your home. You can easily install it to control the lights or outlet. High Quality - This is a standard 86 type switch. The design of this wireless switch is durable. The high-quality relay can be used more than 400,000 times, while the switch itself can be snapped more than 500,000 times. The receiver is equipped with a 10 amp relay, capable of charging high-power devices. It is compatible with AC from 90V to 250V, so AC from 110V/220V/230V is no problem. Wide Application - Operating Voltage: AC90-250V 50/60Hz. The wireless switch can be used in homes, farms, factories, offices, laboratories, supermarkets, etc. You can remotely control each device connected to the receiver using the wireless switch, such as light fixtures, lighting, ventilation equipment, DIY wireless outlets, signal transmission, etc. It is also convenient for controlling garden sheds, garages, outdoor lighting, etc. Descriptions 1. No wiring is needed between the light and the switch. These are 86 standard switches. Stable and reliable performance with high receive sensitivity (> - 108 dBm). Radio frequency signal transmission. Floors, doors, boards and so on go through. It can be controlled at a distance of 50~80 meters in an open space. 2. The size of the radio receiver is 67 x 42 x 23 mm. Wireless switch can be easily hidden in most electrical or branch boxes, it is installed between the power supply and the device, distance between mounting holes: 60mm. The radio switch can be attached with double-sided tape or screws, or with screws on the turntable. 3. One transmitter can also control multiple radio receivers. Wireless switch can be clicked more than 100,000 times. 4. Radio switches can be used in homes, farms, factories, offices, laboratories, supermarkets and so on. You can remotely control any device connected to the receiver via the wireless switch. Such as a lamp, lighting, ventilation device, food bin, DIY wireless plug, signal transmission and so on. Technical Specifications: Operating Voltage: AC 85-240V 50/60HZ Max Load: 2200W/10AV RF Frequency: 433 MHz Receive sensitivity: > - 108 dBm Receiving range: about more than 30-50M (clear) Relay Receiver Size: 67*42*23mm Wireless Switch Size: 86*86*12mm The package contains: -RF Relay Receiver -Wireless switch - Product Manual x 1