Specification: Brand new Material: ABS & Metal Color: Black & Chrome Frequency: 868MHz Distance: Up to 5 meters radius 4 buttons: Lock, Unlock, Truck, Panic Size: approx. 58*32*12mm / 2.28*1.26*0.47inch (L*W*H) Quantity: 2pcs Fully compatible with the following Marantec 868 Mhz remote models: Marantec D302 D304 D313 D321 D323 Remote is powered by 12V 27A battery (not included) Features: Copy most radio fixed code remote controls Self-learning remote control, easy to program your remote. Four Buttons to Operate 4 Different Garage Doors or Gates. Mainly apply to car alarms, home alarms, panic buttons, garage door, rolling curtain, etc. How to duplicate your remote: Step 1 : Erase the remote Click and Hold Lock and Unlock buttons together - Led will flash 3 times Keep holding lock button and release unlock button Keep holding lock button and push unlock button 3 times, Led will start flashing Non-stop Step 2 : clone your original remote Put both remotes Into back to Back position. Make sure they have direct contact Click and hold 1 button on your original remote and 1 button on your clone remote. Keep holding until led will make 2 blinks then 3 blinks then goes into Steady and you have successfully cloned. If for some reason the clone does not go further then 2 blinks , it means the signal does not go through, please shift the remote slowly up and down until you get the point where it will go through. Package included: 2 x 868 Mhz Wireless Remote Control (battery is not included) Note: This remote clones and replaces Marantec 868 Mhz Black Backed models. Do not confuse with grey backed models. Please allow 1-5mm errors due to manual measurement Item color displayed in photos may be showing slightly different on your computer monitor since monitors are not calibrated same This product only can Copy the fixed code and learning code,but it can not Copy Rolling code.