CARDIN S449 QZ2 QZ4 Garage Door Remote Control 433.92MHz Rolling Code Comaptible with: Cardin S449 QZ2 Cardin S449 QZ4 FEATURES Transmitter Frequency: 433 MHz 433.92 MHz Battery: 12V 27A Coding Type: Rolling Control up to 4 doors Included Remote control Battery Keychain English instruction manual Programming transmitters to receiver The remote control is the same function as your original remote.it should programming with original receiver according to your original Manual when you get it. 1. Locate the Learn / Code Set button on the motor. This is usually under the lamp cover, or on the back of the motor. 2. Press the Learn / Code Set button once, then let go. A light should illuminate. 3. Press the desired transmitter button once, and the light will go out. 4. Press the remote again the the light will flash on the motor and then go out, signifying the remote has been coded. 5. Test the operation of the remote.