This top-quality remote will clone the following Marantec 433,92MHz remote controls: Marantec Digital 302 Marantec Digital 304 Marantec Digital 313 Marantec Digital 321 Marantec Digital 323 Command 131 And following Marantec old models: Marantec Digital 211 Marantec Digital 212 Marantec Digital 214 Marantec Digital 221 Marantec Digital 222 Marantec Digital 224 Marantec Digital 231 Marantec Digital 232 Compatible only with Grey-Backed model 433.92MHz. Do not confuse with Black-Backed model !!! Description: 1. Self-learning remote control 2. Mainly apply garage door, rolling curtain, etc. 3. Copy most 433.92MHz fixed code remote controls 4. Learning Back to Back in few seconds 5. Battery included Operating distance: 15 -130m (Depending on your Aerial) Coding Mode: Fixed code Frequency: Fixed frequency 433.92MHz Battery Model: 27A Voltage: 12V How to clone your remote: Please see this link for easy programming video: https://www.youtube.com/watch?v=U5bkC1-KqdU 1) Click and Hold First and Second buttons together - Led will flash 3 times 2) Keep holding First button and release Second button ( keep holding First button since step 1 ) 3) Push Second button 3 times, Led will start flashing Non-stop. ( Keep holding First button since step 1 ) 4) Put both remotes Into Back to Back position ( II ) ! Make sure they have direct contact , touching, push a bit, to make them touch each other harder 5) Click and hold one button on your original remote and one button on your clone remote. Keep holding until led will make : 2 blinks > 3 blinks > Steady = Successfully cloned, only after the light goes into steady. Note: you don"t need an access to you control board or receiver!!!