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 time, the copy remote control will change from on to slow flash three times and turn off, indicating that the pairing is successful. 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-Transmission power: 3 ~ 6dBm-Transmission current: 21ma-Quiescent current: <0.15au-Operating frequency: 315/433.99MHz-Operating voltage: DC12v-Battery type: button battery*2-Housing material: ABS-Product size: 68*33*11mm-Product weight: 18g-Usage range: 150 meters. The package contains: 432Hz NA remote control * 3pcs. This is a 433.92MHz garage door remote control. The transmission distance is between 50 and 100 meters (open space). Open gates and garage doors without getting out of your vehicle for a new remote control experience and much convenience in everyday life! Universal gate remote control - Enjoy a better life! It works on 433.92 MHz. Different frequency beeps are not compatible. Easy operation and wide adaptability, in bottle trucks, garage doors, lane door bans, auto parts modification field can be applied.01 all kinds of electric doors, electric garage doors, passage doors, security monitoring02 vehicles, motorcycle and electric vehicle remote control copy03 home scene applications, lighting fixtures, projection curtains, electric doors and windows04 agricultural application copy cranes, sprayers, water pump remote control, etc.[How to activate]