Unique Design433Mhz RF Wireless Remote Control Switch. Stable and reliable performance, receiving sensitivity (-110dBm). 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 can reach 164 feet without obstacle. 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 set it up yourself according to your needs. The working mode of the product is adjustable. This item has already been set up as Latched mode. And the "ON" button for power on and the "OFF" button for power off. High Sensitivity The receiver adopts a 30A relay. It can load large-power electrical appliances to ensure long-term stability control. Each receiver can store about 20 transmitters. And one transmitter can also control multiple receivers (the transmitter must match the receiver). Quality Assurance High-quality relays that can be used more than 100,000 times. Make this product more stable and reliable. 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~250V voltage, making it more flexible to use Wide Application The products 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. Secure System The chip code is the learning code which is the most popular technology that makes the remote control system more stable. Strong Signal Reception There 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 100 meters. More Flexibility Extremely easy to set up and reset. You can easily add additional wireless switches yourself according to your needs. Technical indicators: voltage: AC85V-AC250V maximum load: 30A working distance: 100m Package includes: 2x remote controls 1 x switch Tip: Connect the switch to the circuit, no matching remote control become very rich