Specifications:Portable and mini size, easy to carry.4 buttons control, strong privacy.Can be used for garage doors, motorcycles, car alarm products, home security products, short-range wireless remote control products, etc..How to Program:1. Press the One and Three buttons until the LED flashes, it takes about 3 seconds.2. Place the remote control remote control side by side with the original remote control/place them side by side to make them touch.3. Simultaneously press the button on the original remote and clone one of the buttons on the remote until the LED on the cloned remote is blinking steadily. (The blue LED will flash 3 times quickly, then stop for one second, then blinks slowly to successfully clone).4. Programming is now successful. If you want to program more buttons, just repeat steps 2-4.Item Name: Remote ControlMaterial: ABSWorking Voltage: DC 12VBattery: 1 x 12V/27A Battery (Included)Operating Current: 8mAWorking Frequency: 433.92MHzModulation Mode: ASK (AM)Transmission Power: 100mWEmission Distance: 50 to 100 Meters (Standard)Encoding Type: Self CopyFeatures: Portable, Mini, 4 Buttons, Wireless RemoteSize: 5cm x 4cm x 1cm/1.97" x 1.57" x 0.39" (Approx.)Notes:Due to the light and screen setting difference, the item& 39;s color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:1 x Remote Control1 x English User Manual