Universal 868mhz Garage Door Remote Duplicator For Marantec D302 D304 D382 D384. Introducing the New Garage Door Remote, a Versatile and User-friendly Remote Designed to Seamlessly Integrate with Your Marantec Garage Door Opener. Operating on a Reliable 868MHz Frequency, This Remote is Compatible with a Variety of Models, Including Digital D382, D384, D304, D313, D321, D323, and Command 131. Key Features: - Frequency: 868MHz / 868.3MHz / 868.35MHz for Strong Performance - Compatibility: Works with Multiple Marantec Models - Convenient Programming: Easy Code Copying from Your Original Transmitter - Chemical Safety: Free from High-concern Chemicals - Buttons: Available with 2 or 4 Buttons for Versatile Use How to Program: 1. Clear History Code: - Press Buttons A and B Until the LED Flashes. - Release Button B, Re-press Slowly Three Times, then Release Button A. 2. Copy Code: - Align Duplicator Close to the Original Transmitter. - Press and Hold Button A on Both Devices Until the Duplicator LED Flashes. Returns & Support: - Full Returns Accepted with Undamaged Items. - Contact Us Within 24 Hours for DOA Cases for Replacement or Refund. Delivery: - Shipped Within 48 Hours Post-payment. For Any Questions or Further Assistance, Feel Free to Contact Us. Your Satisfaction is Our Priority..