About this item APPLICABLE OCCASION - It can be widely used for car doors, garage doors, windows, car alarm products, etc. PLASTIC SHELL - The shell is made of high-quality, strong and durable plastic, which offers a good hand feeling. COMPATIBLE REMOTE CONTROL - For PHOENIX 2, PHOENIX 4, PHOX 2, PHOX 4, TXC, TRC, TSC4, HAND. PORTABLE - It has a key chain and clip for convenient carrying and can effectively avoid getting lost Purchase steps: 1. Confirm that there is a remote control that can be used normally, 2. Disassemble the existing remote control to check the chip model and frequency 3. First look at the frequency and then the model (crystal frequency: 433315390418 Compatible chips: 2264226022621527, FP5272240, SMC918) Step 1: Clear the code of the new remote control 1. Press and hold the two buttons on the new remote control until the indicator light keeps flashing. 2. Release your finger to clear the code successfully. 3. After clearing the code, press any key on the remote control and the indicator light will flash once before going out Attention! Do not perform this code clearing operation on the original remote control. The indicator light keeps flashing and then letting go, not just flashing and letting go. If there is no continuous flashing after pressing for a long time, it indicates that the buttons have not been pressed simultaneously. Please repeat the above steps. Step 2: Remote control copy (code clear before operation) 1. The original left hand remote control and the new right hand remote control should be placed as close together as possible. 2. Press and hold the new remote control button first, and then press the corresponding key of the old remote control to copy. 3. Wait for the indicator light to flash quickly and release it to indicate successful copying. Please operate the same for other key positions to copy.