Replacement for Blue Button 868.3MHz Garage Door Remote models 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 programmable buttons to control up to four different garage doors. Utilizes 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 frequency, non-original. 4 channels, 4 buttons (each corresponding to one channel), each button controls a separate garage door opener. Supports self-learning coding. Due to variations in manufacturing batches, there may be slight differences in appearance, color, or printed text. These differences do not affect functionality. Color: As shown Material: ABS Package Contents: 5 x Garage Door Opener Note: Light reflection and display settings may cause slight color variations between the image and the actual item. Measurement tolerance: +/- 1-3 cm.