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, ensuring compatibility with Digital 868.3 MHz remotes. It is not compatible with 433 MHz models, which have a light grey back. Dual Door Control: Each of the two buttons on the remote corresponds to a separate channel, allowing independent control of up to two garage doors. This provides a convenient solution for homes with multiple garage doors. Color: As shown Material: Plastic Package Contents: 5 x Garage door remotes Note: The package includes only the items listed above. Other products are not included. Note: Lighting and display settings may cause slight variations in color between the image and the actual item. Measurement may vary by +/- 1-3 cm.