1. Type of programming: Programming with the receiver 2. Number of channels: 4 3. Code: rolling code 4. Frequency: 433.92MHz 5. Woring Range: 10-50 m (open space)<br><br>Comaptible with: Cardin S449 QZ1 Cardin S449 QZ2 Cardin S449 QZ3 Cardin S449 QZ4 TXQ449100 TXQ449200 TXQ449300 TXQ449400 Remote come with Battery !!! Security of use: dynamic code provides a high level of security, non-copyable code. Disclaimer:Your Old remote must be same as the advertisement, new remote do not compatible with other remotes. Programming transmitters to receiver The remote control is the same function as your old remote. it should programming with for-original receiver according to your for-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. Colour:As Shown Material:Plastic<br><br>Package Contents: 2 * Remote Control<br><br>Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.