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. Note: 1. Please allow 1-3 mm error due to manual measurement and 1-3g weight error make sure you don't mind before ordering. 2. Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please make sure you don't mind before ordering, thank you! About Shipping: 1.please pay attention to your delivery address such as: name, street, house number, doorbell/email without name, etc. is correct, or the order will not be delivered correctly. 2.All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances. 3.During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 24 hours Hope you have a pleasant shopping experience!