Enhanced Compatibility: This replacement transmitter is compatible with a wide range of for Marantec models including D302-868. D304-868. D222-868. D313-868. D321-868. D323-868. D382-868. D384-868. D392-868. Ensure 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 Marantec 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 independent channel. allowing you to control up to two garage doors separately. This feature provides a convenient solution for multiple garage setups. Colour:Photo Color Material:plastic Package Contents: 2 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.