SEA Remote Control 433.92MHz Rolling Code Sea HEAD 433-2 HEAD 433-4 Garage Door Opener Compatible with: SEA HEAD 433-2 SEA HEAD 433-4 Specifications Item condition - New Third party remote control. Not made by SEA Decoder IC - Rolling Code. Frequency - 433.92MHz. Operating voltage - 12V DC 27A (Free battery included) Transmit distance - 25-50m in open space. Open space means no any interference. No walls, no doors, no trees or any other obstructions. Interference like garage door or brick wall can reduce remote control range significantly. Included Remote control Battery Keychain English instruction manual Programming 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.