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 an existing remote 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. It uses high-frequency technology for improved range and includes the same security code encryption as the original remote. The garage door opener is compact, making it easy to carry and store. Specifications: Replacement handheld transmitter for 868.3 MHz, non-BiSecur. 4 channels, with each button corresponding to one channel for individual door control. Supports self-learning coding. Due to variations in manufacturing batches, there may be 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 error allowance is +/- 1-3 cm.