3. Copy the remote control. Press the button on the old remote control that needs to be copied and try to stay as close as possible to the copy remote control. At this point, the copy remote control will change from on to slowly flashing three times and then turn off, indicating successful pairing. For other buttons, please follow the above method one by one.Specifications-Battery powered-Color: black-Number of channels:2-Number of keys:2-Product model: 432Hz NA-Modulation method: ASK-Transmitting power: 3~6dBm-Transmitting current: ≤21mA-Quiescent current: <0.15au-Working frequency: 315/433.99MHz-Working voltage: DC12v-Battery type: button cell*2-Box material: ABS-Product size: 68*33*11mm-Product weight: 18g-Use range: 150 meters . The package contains: NA 432Hz remote control*3 pieces. This is a 433.92MHz garage door remote control. The transmission distance is between 50-100 meters (open space). Open gates and garage doors without leaving your vehicle for a whole new remote control experience and a lot of daily convenience! Universal Gate Remote - Enjoy a Better Life! Operates on 433.92MHz. Beeps of different frequencies are not compatible. Easy operation and high adaptability, in bottle trucks, garage doors, rail door bans, the field of auto parts modification can be applied. 01 All kinds of electric doors, electric garage doors, garage pass doors, security monitoring 02 Vehicles, remote control copy for motorcycles and electric vehicles 03 Home scene applications, lighting fixtures, projection curtains, electric doors and windows 04 Agricultural applications copy cranes, sprayers, water pump remote control, etc. [Comment allow]