Description: 1. Type of programming: Programming with the receiver 2. Number of channels: 4 3. Code: rolling code 4. Frequency: 433.92MHz 5. Range: 10-150 m (open space) 6. Power supply: CR2032-3V 7. The remote control comes with a battery!!! Compatible model 4330E (4330EML, G4330E, G4330) 4332E (4332EML, G4332E, G4332) 4333E (4333EML, G4333E, G4333) 4335E (4335EML, HE4331, G4335E, G4335) Keyring types: 1A5477-1, 1A5477-3, 1A5097, 1A5478, 1A5080 There are several manufacturers that use these models, including Chamberlain, Motorlift, Wickes and Screwfix. This is an affordable, high-quality replacement or extra remote control. Please note that our remote control is a COMPATIBLE / REPLACEMENT / CLONE remote control, not the original. Programming 1) Press the programming button on your motor. The LED will light up. 2) Press the desired button on the new remote control. 3) The opener's light will flash, confirming successful programming. Now the opener will work when the remote control's push button is pressed. To erase all codes from the receiver, hold the receiver's Learn button until the indicator light goes out (after 6 seconds). All codes learned by the receiver will be erased.