Specifications High-concerned Chemical: None Model Number: Marantec Digital D302 Wireless Communication: WIFI Use: SWITCH Origin: Mainland China Certification: CE Frequency: 868 MHz Compatible Model 1: Marantec Digital D382 868 Compatible Model 2: Marantec Digital D384 868 Compatible Model 3: Marantec Digital D302 868 Compatible Model 4: Marantec Digital D304 868 Compatible Model 5: Marantec Digital D313 868 Compatible Model 6: Marantec Digital D321 868 Compatible Model 7: Marantec Digital D323 868 Compatible Model 8: Marantec Command 131 868 Marantec Garage Remote Control 868MHz Not compatible with remotes that operate on 433.92MHz Included: Remote Control Battery English Manual Features: 1. Enhanced privacy protection 2. One-to-one key copying 3. Each key password stored separately 4. Supports up to one million repeated copy cycles Specifications: Working voltage: 3V Operating current: 8mA Working frequency: 868.3MHz Modulation Mode: ASK (AM) Transmission power: 100mW Emission distance: 50 to 100 meters (line of sight) Encoding type: Self-copy Working temperature: -20°C to +50°C How to Program Face-to-face copying from original remote control Step 1: Clear the history code from duplicator 1. Press buttons A and B simultaneously until the LED flashes 3 times 2. Release button B (keep pressing button A), then press button B slowly 3 times until the LED flashes 3. Release button A to complete code clearance Step 2: Copy code from original transmitter 1. Place the duplicator close to the original transmitter 2. Press and hold button A on the original transmitter, then press and hold button A on the duplicator until the duplicator's LED flashes 3. Release both buttons to complete the code copy. Repeat for other buttons as needed Button A: Lock Button B: Unlock