Type of programming: Programming with the receiver Button: 1 button Frequency: 433.92 MHz Battery: Built-in battery Range: 10m-50m (open space) Compatible models: 4330E (4330EML, G4330E, G4330) 4332E (4332EML, G4332E, G4332) 4333E (4333EML, G4333E, G4333) 4335E (4335EML, HE4331, G4335E, G4335) Access to the receiver is required. Make sure you have access to the receiver or opening before purchasing. How to program: 1. Press the programming button on the motor. The LED will light up. 2. Press the desired button on the new remote control. 3. The light on the door opener will flash, confirming successful programming. The door opener will now work when the button on the remote is pressed. Deleting a code: Press and hold the learn button or the code button on the receiver until the first light starts to flash slowly and then lights up steadily, indicating the code has been deleted. Color: Photo Color Material: Plastic Package Contents: 2 x Garage door openers Note: Only the items listed above are included. Other products are not included. Light reflection and different display settings may cause slight variations in color between the image and the actual item. Measurement error allowed is +/- 1-3 cm.