Replacement for Blue Button 868.3MHz Garage Door Remote HS4, HSE2, HSM2, HSM4, HS1, HS2, HSZ1, HSZ2, HSP4, HSP4-C, HSD2-A, HSD2-C. Not compatible with BiSecur series handheld transmitters. This remote control is a cloned version that requires the original remote control for cloning. Please ensure your original remote control is fully functional; otherwise, this remote will not work. The garage door handheld transmitter features 4 buttons with programmable switches to control up to four different garage doors. It uses advanced high-frequency technology for improved range and includes the same security code encryption as the original remote control. The garage door opener is compact, making it easy to carry and store. Specifications: Replacement handheld transmitter for 868.3 MHz, non-original. 4 channels, with 4 buttons corresponding to 4 channels. Each button can independently control a separate door opener. Supports self-learning coding. Due to variations in manufacturing batches, there may be differences in product appearance, color, and printed text. These differences do not affect functionality. Color: As shown Material: ABS Package Contents: 5 x Garage Door Opener Note: The package includes only the items listed above. Other products are not included. Light reflection and differences in display screens may cause slight variations between the color of the item in the image and the actual product. Measurement error allowance is +/- 1-3 cm.