1/3/5/10/20 pcs. Clone Marantec Digital 302 433 Mhz D302 304 313 Comfort 220 Comfort 250 252 270 AZ021 64176 Garage Door Remote Control Self-copying Marantec 433.92MHz Remote Control Working frequency: 433MHz, 433.92MHz. Encoding type: Self-copying Code: Fixed code Buttons: 2 or 4 Rated voltage: CR2032/12V 27A Battery (included). Marantec 433 Marantec Digital 382 433 Marantec Digital 384 433 Marantec Digital D302 433 Marantec Digital D304 433 Marantec Digital D313 433 Marantec Digital D321 433 Marantec Digital D323 433 Marantec Command 131 433 Marantec Digital 211 433 Marantec Digital 212 433 Marantec Digital 214 433 Marantec Digital 221 433 Marantec Digital 222 433 Marantec Digital 224 433 Marantec Digital 231 433 Marantec Digital 232 433 Special reminder: Please make sure your remote control is on the compatibility list. How to program Copy your original remote control face to face Steps: 1: Clear history code from duplicator 1: Press button A and B continuously until LED flashes 3 times 2. Release button B (hold button A) and press button B slowly 3 times, LED flashes 3. Release button A, finish code clearing. Step 2, Copy code from original remote control 1. Place the duplicator next to the original remote control, as close as possible. 2. Press and hold button A on the original remote control, then press and hold button A on the duplicator until you see the LED on the duplicator flash 3. Release both buttons, finish copying the code, copy other buttons in the same way. Duplicate your existing remote controls so you always have a backup: 1. Vehicle central locking systems 2. Garage doors 3. Electronic gates 4. Electrical appliances/home automation, e.g. lights 5. Car sunroofs 6. Car/motorcycle alarms Includes remote control battery English manual