1. Code cleaning method: Press the unlock button and the lock button at the same time (some shells are up and down button), after the LED indicator flashes three times, loosen any one of the buttons while the other one keeps pressing, then press the "release" button three times, The LED indicator will enter the fast flashing state. At this time, all memory data is cleared, the cleared remote control will not light up the LED indicator no matter which button you press. 2. Copy method One hand holds the original remote control, and the other hand holds the copy remote control, the two remote controls should be placed as close as possible (the ideal situation is to put the two remote controls on the desktop near the zero distance), respectively press copy button, when the LED flashes quickly after three flashes, this copy is successful, other key operation methods are the same. Some remote controls have lower transmission power, so the original remote control must be placed back to the copied remote control to operate. For the presence of noise, it must avoid interfering with the operation; if the copy is not successful, it must retry after cleanup of the code. Please clean up your testing code before copying. Press the top 2 buttons at the same time until the LED light flashes 3 times quickly, then release any of the buttons (the other one keeps pressing), and press this button 3 times, then release both buttons after the LED lights up quickly. The LED lamp does not turn on when any button is pressed, it means you will clear the code. Studying the code. Press and hold one button on this remote control and also on your remote control, make them close to get a signal in 3 seconds, the LED lamp flashes quickly and then always on, then release the button. Try to press this button, the LED indicator will be on, it means you have copied successfully. Follow the same steps for other buttons. Recovery function. If you accidentally delete useful codes, you can press 3 and 4 buttons at the same time until the LED lamp flashes quickly 3 times, then recover successfully. Easy to use, 4-channel remote control The control system allows you to control your gadgets, car, home, and garage. This is not a complete list! If your remote uses the 433MHz frequency, it will work with a remote duplicator (Note: remotes' rollover code will not work). The IC model of the original remote control is 2262 2260 1527 2240 and compatible IC. The battery used in the product is 27A 12V, please replace the battery when the remote control distance is insufficient. Clone up to 4 remote signals from 4 different remotes. With this remote control, you can control all 433MHz fixed code keyfobs. Some remote controls that use this frequency are listed below. 4 channel RF wireless remote control for cars, garage doors, gates, alarm systems, etc. This is a fixed frequency (433MHz) remote cloner for copying regular fixed and learning remote control codes. copy chip 2260 (all manufacturers), 2262 (all manufacturers), PT2264 (all manufacturers), 5326 (all manufacturers), 527 (all manufacturers), 1527 (all manufacturers), 2240 (all manufacturers) HT6026, HT6012, HT6014, HT600, HT680, HT6010, HT6207, HT640, HT6P12E, HT6P20D, 12L-4SC PT2292, 12L4SC, SC5262, PLC168, NF9420116, UM3750AM, SMC918, SMC908, 1416, 5211 HCS101, HCS200, HCS201, HCS300, HCS301 (code part) Specifications: Packing method: open cell polyurethane foam Working current: 10mA Radiation power: 10 mW Transmission frequency: 433 MHz Transmission distance: 50-100m (open area, receiving device sensitivity is negative 100dBm) Encoder type: fixed code. Learning code Color: ABCD Button/Switch Lock Button/Number 1234/Up and Down Buttons Function: Copy Remote Control/Test Remote Control/Copy Remote Control Size: 5.4 2.9 1.4 (cm) Weight: 28g Application area: The remote control is widely used, mainly used for remote control of electric sliding doors, elevators, remote controls, remote control of sliding doors, garage doors, sliding doors, remote control of LED lights, remote control fireworks, remote control passenger doors, anti-theft alarms, electric door alarms, MP3 motorcycle anti-theft alarm, etc. Package includes: 1 * 433MHz remote control