Features 1. Multi-functional and multi-variable, personalized, and user-friendly simple design and fast to use. 2. This smart copy remote control is suitable for electric door remote control, telescopic door remote control, and garage door remote control. 3. Clearing method: When the top two buttons are pressed at the same time, the LED indicator flashes 3 times and then releases the right hand (do not release the left hand). Press the right button continuously for three consecutive times with the right hand, and the indicator light flashes. Then the press any button the light is still off. The clear function is completed. 4. Copying: The corresponding button(you can decide which) of the old remote and our remote control are both pressed, during which the light quickly flashes twice, and slowly flashes 3 times then continuously lights, and then the two buttons are copied. The following 3 buttons copying is the same. 5. Chips that can be copied: PT2262,PT2240, PT2264, PT2260,PT2242,SC2262, SC2260, EV1527,P527,HT600,HT640,HT12D,HT12F,HT12E,SC5262 etc. Specifications: Material: Plastic. Color: Black Type: Mini 433Mhz Copy Remote Control Number of keys: 4 For: Such as electric telescopic door remote control, road gate remote control, alarm remote control, and so on. Rated volume: 12V Battery. Wireless transmission distance: 50-150 (m). (open space) Package includes: 1*433MHZ remote control duplicator.