Marantec Garage remote control 868MHz Specifications: Working voltage: 3V (CR2032 battery a including) Operating Current: 8mA Working frequency: 868.3MHz Modulation Mode: ASK (AM) The transmission power: 100mW Emission Distance: 50 to 100 m (proof) The encoding type: self Copy The working temperature: -20 C to and50 C Features: 1.Privacy is strong 2.One to one key copy 3.Each key password alone save 4.Can continuous repetitive copy use one million times Compatible Model: Marantec Digital D382 868 Marantec Digital D384 868 Marantec Digital D302 868 Marantec Digital D304 868 Marantec Digital D313 868 Marantec Digital D321 868 Marantec Digital D323 868 Marantec Command 131 868 Not compatible with remotes that operate on 433.92MHz Face To Face Copy Your Original Remote Control Step:1: Clear the history code from duplicator 1. Press button A and B continuously until LED flash 3 times 2. Release button B (Keep pressing button A),and press button B Slowly for 3 times.LED flash 3. Release button HAH,finish code clearance. Step 2: Copy code from original transmitter 1. Put duplicator aside of original transmitter.as close as possible. 2. Press and hold button A of original transmitter,then press and hold button A of duplicator until you see the duplicator's LED flash 3. Release both buttons,finish code copy.copy other button in same way. Include: Remote Control Battery Keychain English Manual