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 Control Material: ABS Working Voltage: DC 12V Battery: 1 x 12V/27A Battery (Included) Operating Current: and le;8mA Working Frequency: 433.92MHz Modulation Mode: ASK (AM) Transmission Power: and le;100mW Emission Distance: 50 to 100 Meters (Standard) Encoding Type: Self Copy Features: Portable, Mini, 4 Buttons, Wireless Remote Size: 5cm x 4cm x 1cm/1.97 and quot; x 1.57 and quot; x 0.39 and quot; (Approx.) Notes: Due to the light and screen setting difference, the item and 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 Control 1 x English User Manual Portable, Mini, 4 Buttons, Wireless Remote ABS Remote Control Portable, Mini, 4 Buttons, Wireless Remote ABS