Features: High sensitivity, instantaneous response. The device has decent transmission distance and is quite flexible in functionality, signal stability. Low standby power consumption, high receiving sensitivity, small product size, can be flexibly used in multi-channel control equipment. One receiver can be paired with multiple remote controllers at the same for time, and a variety of working modes can be adjusted to easily adapt to a variety of different working scenarios. Widely application, can be used in homes, farms, factories, offices, laboratories, supermarkets and so on. Remote control garage door, electric door, house door, shutter door, expansion door, etc. Specifications: Material: ABS RF frequency: 433MHz Receiving sensitivity: -105dbm Type: 12V 48V/220V Package Includes: 1 Set Transmitter and Receiver note: 2x 1.5V batteries are needed.(NOT Included) Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.