This product is not for long-distance copying; it must be used normally with the original remote control and copied close to this product. Battery replacement prompt: Please replace the battery (battery model 12V27A) when the digital tube value is not under control. Compatible with remote control coding chip fixed code series PT2264, PT2262, PT2260, HS2262, SC2262, SC2260, learning code series EV1527, HS1527, FP527, EV1528, EV1530, PT2240HT12E, HT12D, HT12F, HT6P20B, HT6P20D, HT6P237A, HT6P247A, HT6P427A, HT6P437AISMC918, SC5262, SMC926, VD5036, VD5326. Supports rolling code HCS101 (garage replica door remote control chip); most microcontrollers self-write rolling codes. This product is designed for easy copying of remote controls, ensuring compatibility with a wide range of coding chips. It is essential to operate the device in close proximity to the original remote for effective copying. The battery model 12V27A should be replaced when the digital display is not functioning correctly. Color: Black Material: ABS Package Contents: 1* 433MHz Garage Door Remote