Replacement for Blue Button 868.3 MHz 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 requires cloning from an working remote. Ensure the remote is fully functional before cloning. The handheld transmitter features 4 buttons with programmable switches to control up to four different garage doors. It uses high-frequency technology for improved range and employs the same security code encryption as the remote. Compact and lightweight design for easy carrying and storage. Specifications: Replacement hand transmitter for 868.3 MHz systems. 4-channel operation — each button corresponds to one channel and can control a separate door opener. Self-learning coding. Product appearance, color, and printed text may vary slightly between batches due to manufacturing differences; these variations do not affect functionality. Color: As shown Material: ABS Package Contents: 5 × Garage Door Remote Transmitters Note: Color representation may vary slightly due to screen settings and lighting conditions. Measurement tolerance: ±1–3 cm.