1/3/5/10pcs Marantec Digital 302 304 313 382 384 D323 211 212 214 224 Garage Door Remote Control 433MHz Handheld Transmitter Marantec 433.92MHz Remote Control Working frequency: 433MHz, 433.92MHz Encoding type: Self-copy Code: Fixed code Buttons: 2 or 4 Rated voltage: CR2032/12V 27A Battery (included) Compatible with Marantec Digital 382, 384, D302, D304, D313, D321, D323, Command 131, Digital 211, 212, 214, 221, 222, 224 models Special reminder: Please verify that your remote model is on the compatibility list before purchase. Programming instructions: Face-to-face copying from original remote control Step 1: Clear history code from duplicator 1. Press buttons A and B simultaneously until LED flashes 3 times 2. Release button B (keep pressing button A), then press button B slowly 3 times until 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 LED flashes 3. Release both buttons to complete code copying; repeat for other buttons as needed This remote can duplicate existing remote controls for use as a backup for: - Garage doors - Electronic gates - Home automation systems (e.g., lights) - Vehicle central locking systems - Car sunroofs - Car or motorbike alarms Package includes: - Remote control - Battery - English user manual