" This is a 433.92 MHz garage door remote control. The transmission distance is 50-100 meters (open space). You can open the car door and garage door without getting out of the car, enjoy 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, aisle access control and automobile parts modification. 01 All kinds of electric doors, electric garage doors, access doors, security monitoring 02 Remote control copy for automobiles, motorcycles and electric vehicles p> 03 Home Scene applications, lamps, projection screens, electric doors and windows 04 Agricultural applications imitation cranes, sprayers, pumps remote controlled water heaters, etc. [How to activate] 1. Erase First Press and hold both buttons on the remote simultaneously until the light flashes from slow to fast, indicating that erasing of the code is successful. The light will continue to flash for approximately 15 seconds. Please complete step 2 within this timeframe 2. Select Action Button Press the button you want to copy. At this time, the rapid flashing lights have just stabilized. Press the button that needs to be copied, the indicator light flashes quickly and is always on 3. Duplicate the remote control Press the button on the old remote control that needs to be duplicated and get as close to the copy as possible. At this time, the pairing remote control will change from bright flashing to slow flashing three times and then turn off, indicating that pairing is successful. specification -Battery powered -gray - Number of channels: 2 - Number of keys: 2 -Product model: 432HzEE - Modulation method: survey -Transmitting power: 3 ~ 6 dBm - Transmitting current : 21ma - Quiescent current: &lt; 0.15 au -Working frequency: 315/433.99 mhz -Operating voltage: DC12v< /p> - Battery type: button cell * 2 -Case material: ABS < /p> - Product size: 68*33*11mm - Product weight: 18g - Usage range: 150 meters - Package contents: 2 432 HzEE remote controls. " Sold by the grid cool store