This is a 433.92MHz garage door remote control. The transmission distance is 50-100 meters (open space). You can open the car door and the garage door without getting out of the car, enjoying a new remote control experience and bring many conveniences to daily life!Universal access control remote control - enjoy a better life!It operates on 433.92 MHz. Beeps of different frequencies are not compatible.The operation is simple and the adaptability is wide, and it can be applied in the fields of bottle cars, garage doors, driveway access control and auto parts modification.01 All kinds of electric doors, electric garage doors, access doors, security monitoring02 Copy of remote control for automobiles, motorcycles and electric vehicles03 Applications Home Scene, lamps, projection screens, electric doors and windows04 Agricultural applications imitation cranes, sprayers, remote control water pumps, etc.[How to activate]1. Delete firstPress and hold both buttons on the remote simultaneously until the light flashes from slow to fast, indicating that the code has been successfully erased. The light will continue to flash for approximately 15 seconds. Please complete step 2 within this time2. Select the action buttonPress the button you want to copy. At this time, the fast flashing lights have just stabilized. Press the button that needs to be copied, the light flashes quickly and is always on3. Duplicate remote controlPress the button on the old remote that needs to be duplicated and get as close to the duplicate as possible. At this time, the pairing remote will change from bright flashing to slow flashing three times and then turn off, indicating pairing is successful.specification-Battery powered-grey- Number of channels: 2- Number of keys: 2-Product model: 432HzEE- Modulation method: survey-Transmit power: 3 ~ 6 dBm- Emission current: 21ma- Quiescent current: < 0.15 au-Working frequency: 315/433.99 mhz-Operating voltage: DC12v- Battery type: button cell * 2-Housing material: ABS- Product size: 68*33*11mm- Product weight: 18g- Range of use: 150 meters- Package contents: 2 x 432HzEE remote controls.