Enhanced Compatibility: This replacement transmitter is compatible with a wide range of Marantec models including D302-868, D304-868, D222-868, D313-868, D321-868, D323-868, D382-868, D384-868, and D392-868. Ensures seamless operation with these specific models. Frequency Specific: This remote operates at a frequency of 868.3 MHz with a black backside, designed to match the Marantec Digital 868.3 MHz remote. Not compatible with 433 MHz models that have a light grey back. Dual Door Control: Each of the two buttons corresponds to an independent channel, allowing control of up to two garage doors separately. Ideal for multiple garage setups. Color: As shown in photo Material: Plastic Package Contents: 2 x Garage door remotes Note: The package includes only the items listed above. Other products are not included. Lighting and display settings may cause slight color variations between the image and the actual item. Measurement may vary by +/- 1-3 cm.