Enhanced Compatibility: This replacement transmitter is compatible with a wide range of for models including D302-868, D304-868, D222-868, D313-868, D321-868, D323-868, D382-868, D384-868, D392-868. seamless operation with these specific models. Frequency Specific: This remote operates at a frequency of 868.3MHz with a black backside, ensuring it matches your for Digital 868.3 MHz remote. Note: It is not compatible with the 433MHz frequency models that have a light grey back. Dual Door Control: Each of the two buttons on the remote corresponds to an channel, allowing you to control up to two garage doors separately. This feature provides a convenient solution for multiple garage setups. The product appearance and printed words from batch to batch, but not affect the use Color: As Shown Material: plastic Package Contents: 3 x garage door remote Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.