【Unique Design】433MHz RF wireless remote control switch. Stable and reliable performance, receiving sensitivity (>-105dBm). Strong signal can penetrate walls, floors and doors. It can penetrate walls, floors and doors and control the receiver from any location at a reliable distance. The maximum range can reach 164 feet without obstacles. 【Easy to Use】: Extremely easy to set up and reset. There are 3 working modes (momentary/toggle/latch mode) to choose from. You can easily configure it by 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 sensitivity】The receiver has a 30A relay, which can charge powerful electrical appliances to ensure long-term control stability. Each receiver can store about 20 transmitters. And one transmitter can also control multiple receivers (the transmitter must match the receiver). 【Quality