Features: High sensitivity, immediate response. The device has decent transmission distance and is quite flexible in functionality, signal stability. Low power in standby mode, high receiving sensitivity, small product size, can be flexibly used in multi-channel control equipment.One receiver can be connected with multiple remote controllers, and a variety of working modes can be adjusted to easily adapt to a variety of work scenarios. Wide application, can be used in homes, farms, factories, offices, laboratories, supermarkets and so on further. Remote control garage door, electric door, house door, shutter door, expansion door, etc. Specifications: Material: ABS Size: Approx. 75.5x34.5x20.6mm/2.97x1.36x0.81in Frequency: 433MHz Note: Please allow 1-2cm error due to manual measurement, please make sure you have no against it before ordering. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1x transmitter receiver