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 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 maintains 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; each button corresponds to one channel and 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, or printed text. These variations do not affect functionality. Color: As shown Material: ABS Package Contents: 5 x Garage Door Opener Note: Light reflection and differences in display screens may cause slight color variations between the image and the actual item. Measurement error allowance is +/- 1-3 cm.