Set of 4 universal remote controls for automatic doors, 433.92 MHz frequency, fixed code

One remote control can control up to 4 different codes and is self-programmable. Compatible with most remote controls (such as Faac, Came, Nice...), 433.92 MHz frequency, fixed code. Simple and modern design. Battery not included (27A 12V), replaceable without loss of stored codes. Note: This product does not include instructions. The remote control is extremely compact and made of robust ABS plastic and aluminum. It has a sleek and modern design and features sliding key protection to prevent accidental presses. Battery not included (27A - 12V), replaceable without loss of saved codes. This item is sold without a description. But it's simple to use: to program a remote control, simply hold it in front of the remote control you want to copy, about half a centimeter away. Press the Copy button on the original remote and the Program button on the new remote (A or B) simultaneously. After approximately 3 seconds, the LED indicator will begin to flash steadily. Then release the button. Repeat these steps to program the other buttons on the remote. To erase the existing memory, simply press buttons A and B on the remote simultaneously until the LED indicator begins to flash steadily. Then release the button. This will erase two memory settings. The dimensions are approximately 53 × 32.6 mm. Operating voltage: DC12 V. Operating current: ≤8 mA. Transmission power: +13 dBm. Remote control distance: 100 m in open space. Frequency deviation: ±0.2 MHz. Transmission rate: 50-60 kHz.