Universal Compatibility: Designed to replace BiSecur series transmitters such as 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: Easily program your new remote either by copying the code directly from your existing remote or through programming it via the receiver. Note: This model features a rolling code (blue LEDs) and is not compatible with fixed code systems (red LEDs). Please note: slight physical color differences do not affect performance. Multi-Channel Functionality: Equipped with 2 buttons. Color: As shown. Material: Plastic. Package Contents: 1 x Garage Door Opener. Only the above package content is included. Note: Light reflection and different displays may cause the color of the item in the picture to appear slightly different from the real thing. The measurement allowed error is +/- 1-3cm.