3 Styles for Normstahl / Crawford 433 Garage Door Opener Remote Control Rolling CodeFeatures:1) Compatible with: Crawford garage door opener.2) Number of channels: 4 / 23) Frequency: 433.92Mhz4) Battery: 12V 27A /CR20325) This is a third-party remote control. NOT manufactured by Crawford.Compatible model:Normstahl / Crawford EA433 2KSNormstahl / Crawford EA433 4KSNormstahl / Crawford RCU433-2Normstahl / Crawford RCU433-4Normstahl / Crawford N002800Normstahl / Crawford EA433 2KM MicroNormstahl / Crawford T433-4Transmission distance - 25-50m in open space. Open space means no interference. No walls, no doors, no trees or other obstacles. Interference such as a garage door or brick wall can significantly reduce the range of the remote control.New remote control programming:1) Open the courtesy light cover to expose the \"Learn\" or \"Code Set\" button. Otherwise, it is on the back of the motor head.2) Press the \"Learn button (* LED indicator lights up steadily)3) Press the remote control button you want to control the door with - the LED indicator turns off4) Press the same remote control button again - the LED indicator starts flashing rapidly, programming is complete when the LED indicator stops flashing5) Close the courtesy light coverIncludesRemote controlBatteryKeychainEnglish manualProfessional certificate, quality assurance.