3-Piece Marantec Digital Garage Door Remote Control Replicator Compatible with Models 302, 304, 313, 382, 384, 220, 250, 252, 270, AZ021, and 64176 Operating Frequency: 433.92 MHz Encoding Type: Fixed Code Buttons: 2 or 4 Power Source: CR2032 Battery (included) Compatible with Marantec Digital remote models including: 302, 304, 313, 321, 323, 382, 384, 211, 212, 214, 221, 222, 224, 231, 232, Command 131, and others operating at 433.92 MHz. Programming Instructions: 1. Clear existing codes: Press and hold buttons A and B until the LED flashes three times. Release button B while continuing to hold button A, then press button B slowly three times. Release button A when the LED flashes again. 2. Copy code from original remote: Place the duplicator close to the original remote. Press and hold button A on both remotes simultaneously until the duplicator’s LED flashes. Release both buttons. Repeat for additional buttons. Use this duplicator to create backup remotes for: - Garage doors - Electronic gates - Vehicle central locking systems - Home automation devices (e.g., lights) - Car sunroofs - Car and motorcycle alarms Package Includes: - 3 x Remote Control Units - 3 x CR2032 Batteries - 1 x English User Manual