Replacement Remote Control: This garage door remote control serves as a replacement, not an original accessory. Check compatibility with your model (for GOL4, for BIXLG4, for BIXLP2, for BIXLS2) before purchase to avoid any inconvenience. Compatibility Assurance: Specifically designed for models GOL4, BIXLG4, BIXLP2, BIXLS2. Double-check your remote's model number for a perfect match and seamless operation with your garage door opener. High Frequency & Multi-Channel: Operates at a frequency of 433.92 MHz and offers 4 distinct channels for improved functionality and multiple garage access, enhancing the user experience with efficient response times. The actual product may have slight color differences, which do not affect use. Color: Black Material: Plastic Package Contents: 2 x Garage Door Opener Only the above package content is included; other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture to vary slightly from the real thing. The measurement allowed error is +/- 1-3 cm.