1/3/5/10pcs Digital Garage Door Remote Control 433MHz Handheld Transmitter Compatible with Specific Brands 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 specific variants: Digital 382 433 Digital 384 433 Digital D302 433 Digital D304 433 Digital D313 433 Digital D321 433 Digital D323 433 Command 131 433 Digital 211 433 Digital 212 433 Digital 214 433 Digital 221 433 Digital 222 433 Digital 224 433 Digital 231 433 Digital 232 433 Special reminder: Please ensure that your remote is on the compatibility list. How to program: Face-to-face copy your original remote control Step 1: Clear the history code from duplicator 1: Press button A and B continuously until LED flashes 3 times 2: Release button B (keep pressing button A), and press button B slowly for 3 times, LED will flash 3: Release button A, finish code clearance. Step 2: Copy code from the original transmitter 1. Place the duplicator next to the original transmitter, as close as possible. 2. Press and hold button A of the original transmitter, then press and hold button A of the duplicator until you see the duplicator's LED flash 3. Release both buttons, finish code copy; copy other buttons in the same way. Duplicate Your Existing Remote Controllers so you always have a backup: 1. Vehicle central locking systems 2. Garage doors 3. Electronic gates 4. Electrical appliances/Home automation, i.e., lights 5. Car sunroofs 6. Car/Motorbike alarms Included: Remote Control Battery English Manual