This is a 433.92MHZ remote control for garage door. The transmission distance is between 50 and 100 meters (open space). Open doors and garage doors without getting out of your vehicle for a new remote control experience and a lot of convenience in everyday life Universal gate remote control - Enjoy a better life It operates on 433.92 MHz. Beeps of different frequencies are not compatible. Easy operation and wide adaptability, in bottle truck, garage door, lane door ban, auto parts modification field can be applied. 01 all kinds of electric gates, electric garage doors, passage doors, security monitoring 02 vehicles, remote control copy for motorcycles and electric vehicles 03 home scene applications, light fixtures, projection curtains, electric doors and windows 04 agriculture application copy cranes, sprayers, remote control water pumps, etc. [How to activate] 1. Clear first Press and hold both buttons on the remote control at the same time until the light flashes from slow to fast, which means the clear code is successful. The light will continue to flash for approximately 15 seconds. Please complete step 2 within this period 2. Selected action button Press the button you need to copy. At this time, the fast flashing light has just changed to a steady state. Press the button you need to copy, then the indicator by the fast flashing just at the moment, in a constant lighted state 3. Remote control copy Press the button of the old remote control which needs to be copied and try to stay as close to the copy remote as possible. At this time, the copy remote control changes from on to a slow flash three times and turns off, indicating that the pairing is successful. For other buttons, please follow the above method one by one. Specification - Battery powered - Color: white - Number of channels: 2 - Number of keys: 2 - Product model: 432HzNA - Modulation method: request - Transmit power: 3~6dBm - Transmit current: 21mA - Quiescent Current:< 0.15 au -Operating frequency: 315/433.99mhz -Operating voltage:DC12v -Battery type: button battery*2 -Case material:ABS -Product size:68*33*11mm -Product weight:18 g -Use range: 150 meters -Package included: 432HzNA remote control 2PCS