STRONG SIGNAL - Using RF technology, it can pass through walls, floors, and doors, controlling the receiver from any location within a reliable distance. The maximum range can reach 100 meters without obstacles. The learning code provides high security due to the low repetition rate and re-learning mode, allowing you to clear the old code and learn a new code when a remote control is lost. Wide application: It is mainly used in lamps, electric doors, windows, gates, industrial control and the security industry, and other fields. NOTE: This is not a potentially free contact that only activates the power supply voltage. Choose the appropriate remote control switch according to the device's voltage. 100 meters remote control distance, easy to work in gardens, squares, yards, and even factories. Just connect it to the circuit, without complicated settings. Ordinary people can complete it. Compact design, no 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 Useful tip: 1.Connect the switch to the circuit, no matching remote control 2. Welcome to my store, please enjoy your shopping.