Please note: slight color variations due to lighting and display settings may occur and do not affect product functionality. Thank you for your understanding. Universal Compatibility: Designed to replace BiSecur series transmitters including HSE1-868-BS, HSE2-868-BS, HSE4-868-BS, HS1-868-BS, HS4-868-BS, HS5-868-BS, HSS4-868-BS, HSP4-868-BS, HSD2-868-BS. This remote operates at 868.3MHz with a rolling code for enhanced security. Dual Programming Options: Program the remote by copying the code directly from your existing remote or via the receiver. Note: This model uses a rolling code system (indicated by blue LEDs) and is not compatible with fixed code systems (red LEDs). Multi-Channel Functionality: Features 4 buttons that allow independent control of up to 3 garage doors. Each button corresponds to a separate channel, offering flexible management of multiple access points. Material: Plastic Color: As shown in image Package Contents: 5 x Garage Door Opener Remote Note: Other items not included. Measurement may vary by +/- 1-3 cm due to manual measurement.