Wide Compatibility: This replacement garage door opener is designed to work with various handheld transmitters, including models HSE4-868-BS, HSE2-868-BS, and HS5-868-BS. Please verify your model is listed in the compatible models. Specific Frequency Operation: Operates at 868 MHz and features a blue LED light indicator and four channels. It is essential to match the frequency, as this device is not compatible with other frequencies, even if remotes appear similar. Non-, Effective Replacement: This is a replacement garage door opener—not an manufacturer product—but provides reliable performance and durability for smooth garage door operation. Important Compatibility Note: Before purchasing, confirm your existing remote control is among the listed compatible models. This product is designed for 868 MHz systems using rolling codes (indicated by blue LEDs) and is not compatible with fixed-code systems (indicated by red LEDs). Dual Programming Options: Can be programmed by copying the code from an existing remote or directly through the receiver, offering flexible and straightforward setup. Color: Black Material: Plastic Package Contents: 2 x garage door opener Note: Light reflection and display differences may cause slight color variation between the image and the actual item. Measurement tolerance is +/- 1–3 cm.