This is a 433.92 MHz garage door remote control. 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 much convenience in daily life! Universal gate remote control - Enjoy a better life! It operates on 433.92 MHz. Beepers of different frequencies are not compatible. Easy operation and wide adaptability, in the bottle truck, garage door, lane door ban, auto parts modification field can be applied. 01 All kinds of electric doors, electric garage doors, passage doors, security monitoring 02 Vehicles, copying the remote control for motorcycles and electric vehicles 03 Home scene applications, lighting fixtures, projection curtains, electric doors and windows 04 Agriculture application copy cranes, sprayers, water pumps remote control, etc. [How to activate] 1. Clear first Press and hold the two buttons of the remote control at the same time until the indicator light flashes from slow to fast, which means the clear code is successful. The indicator light will continue to flash for about 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 indicator light has just changed to a constant state. Press the button you need to copy, then the indicator from the fast flashing just now, into a constant on state 3. Copy remote control Press the button of 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 changes from the on state to a slow flash three times and goes out, which indicates that the pairing was 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 -Transmitting power: 3-6dBm -Transmitting current: ≤21mA -Quiescent current: andlt; 0.15Au -Operating frequency: 315/433.99mhz -Operating voltage: DC12V -Battery type: button battery x 2 -Case material: ABS -Product size: 68 x 33 x 11mm -Product weight: 18g -Using range: 150 meters -Package included: 432HzEV remote control 2PCS