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 lots 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, track door ban, automobile parts modification field can be applied. 01 all types of electric doors, electric garage doors, passage doors, 02 vehicle security monitoring, remote control copy for motorcycles and electric vehicles 03 home scene applications, lighting 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 indicator 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. Action button selected Press the button you need to copy. At this time, the fast flashing light has just changed to a constant state. Press the button you need to copy, then the indicator will flash quickly just now, in a constant on state 3. Copy remote control Press the button of the old remote control which needs to be copied and try to stay as close as possible to the copy remote control. At this time, the copy remote control changes from the on state to a slow flash three times and turns off, indicating that the pairing has been successful. For other buttons, please follow the above method one by one. Specification - Battery powered - Color: black - Number of channels: 2 - Number of keys: 2 - Product model: 432HzEV - Modulation method: ask - Transmission power: 3~6dBm - Transmitting current: ≤21ma - Quiescent current: < 0.15 to -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: 432HzEV remote control 2PCS