Enhanced Compatibility: This replacement transmitter is compatible with a wide range of models including D302-868, D304-868, D222-868, D313-868, D321-868, D323-868, D382-868, D384-868, and D392-868, ensuring 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 your Digital 868.3 MHz remote. Note: It is not compatible with 433 MHz frequency models that have a light grey back. Dual Door Control: Each of the two buttons on the remote corresponds to a separate channel, allowing you to control up to two garage doors independently. This feature provides a convenient solution for multiple garage setups. Product appearance and printed text may vary slightly from batch to batch, but this does not affect functionality. Color: As shown Material: Plastic Package Contents: 3 x Garage door remotes Only the items listed above are included; other products are not included. Note: Lighting reflections and differences in display screens may cause slight variations between the color of the item in the image and the actual color. Measurement may vary by +/- 1-3 cm.