Unique Concept: 433Mhz RF wireless remote control switch. Stable and stable performance, receiving sensitivity (-105dBm). Strong signals can pass through walls, sunlight and doors. You can pass through walls, windows and doors, controlling the doors to ensure that you have finally reached the fairytale distance. The maximum range can accommodate 164 feet without obstacles. Easy to Use: Very easy to set up and initialize. There are 3 operating modes to choose from (momentary/toggle/locked mode). You can easily configure the product's functional modes according to your needs. The item will now be configured in locked mode. The ON button indicates alum and the OFF button indicates éteindre. High Sensitivity: The receiver uses a 30A relay, which can load high-power electrical appliances, ensuring that the receiver can accommodate 20 batteries. And one transmitter can control multiple receivers in the same way (the transmitter does not match the receiver). Quality Assurance: High-quality