Unique Design433Mhz RF Wireless Remote Control Switch . Stable and reliable performance, receiving sensitivity ( - 105dBm). A strong signal can pass through walls, floors, doors. it can pass through walls, floors and doors, control the receiver from any place within a reliable distance. The maximum range is up to 164 feet unobstructed. Easy to Use: Extremely easy to set up and reset. There are 3 working modes (momentary/toggle/latched mode) can be chosen. You can easily configure it yourself according to your needs. The working mode of the product is adjustable. This item has already been configured in locked mode. And the ON button to turn on and the OFF button to turn off. High SensitivityThe receiver adopts 30A relay.capable of charging large-power electrical appliances to ensure control of long-term stability. Each receiver can store about 20 transmitters. And one transmitter can also control multiple receivers (the transmitter must match the receiver). Quality AssuranceHigh quality Relays can be used for more than 100,000 times.Make this product be more stable and reliable .The high-power terminals can withstand 30A current, so this product can have a good effect even when the current is unstable. The receiver is suitable for 85V~240V voltage, it is more flexible use Wide applicationProducts can be used in homes, farms, factories, offices, laboratories, supermarkets , etc. You can remotely operate each device connected to the relay receiver via the remote control. such as lights, pumps, wireless security alarms, fans, lamps, ventilation devices, monitors, printers, fountains and other electrical equipment, etc. System secureThe chip code is EV1527 learning code which is the most popular technology which makes the remote control system more stable. Strong signal receptionThere is an antenna on the receiver, so you can stretch it yourself to get stronger signal reception. The remote control distance can be up to 50 meters. More flexibilityExtremely easy to configure and reset. You can easily add additional wireless switches yourself according to your needs.