Key garage door compatible remote control model TXB-42 R/TXB-44 R/TXG-44R/SUB-44 R rolling code 433mhz transmitter Please make sure that your remote control matches the model in our picture. The programming code must be the rolling code 433.92MHz, otherwise it cannot be programmed. If you cant confirm, please contact us Introduction: Code type: rolling code Frequency: 433.92MHz Control distance: 25-50m (open, barrier-free) This is a remote control replacement device, not manufactured by Key Include 1. Garage door remote controlIncluding battery 2. Keychain 3. English manual Programming instruction 1. Open the casing of your receiver. It is located next to your motor. 2. On the receiver circuit board, press the programming button and let it go (ENR, MEMO, PROG, REC according to the model) The LED light on the receiver illuminates or blinks. 3. Press a button on your new remote control for 1 second. 4. Let the button go. The LED light on the receiver turns off immediately or in the following 10 seconds according to the model. Your new remote control is programmed.