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 remote control for cloning. Please ensure your 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 maintains the same security code encryption as the remote control. The garage door opener is compact, making it easy to carry and store. Specifications: Replacement handheld transmitter for 868.3 MHz, non-. 4 channels; 4 buttons correspond to 4 channels, each button controls a separate door opener. Supports self-learning coding. Due to different production batches, there may be variations 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: 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.