STRONG SIGNAL - Adopts RF technology, it can pass through walls, floors and doors, control the receiver from any location within a reliable distance. The maximum range can reach 328 feet without obstacle. The learning code provides high security due to the low repetition rate and relearn mode, which allows you to erase the old code and relearn a new code when a remote control is lost. Wide application: It is mainly used in lamps, electric doors, windows, door, industrial control and control industry. safety and other fields. NOTE: This is not a potentially free contact which only activates the supply voltage. Please select the appropriate remote control switch according to the voltage of your device. 100 meters remote control distance, easy to work in garden square farms and even factories. Just connect it to the circuit, without complicated settings. Ordinary people can complete it. Compact design, you don't need to take up much space. Technical indicators: voltage: AC100V-240V max load: 30A working distance: 100m Package includes: 2 x remote controls 1 x switch 1 x manual Practical tip: 1.Connect the switch to the circuit, no corresponding remote control 2. Welcome to my store, please enjoy your shopping.