[Seamless Wireless Tuning]TheProgrammable Bluetooth Adapter allows for effortless wireless tuning of your e-bike controller, enabling you to adjust settings without the need for cumbersome cables [Wide Compatibility]This adapter is specifically designed to work,Compatible with and controller programming modules, ensuring reliable performance and easy integration with your e-bike system [User-Friendly Interface]Featuring an intuitive mobile app, the adapter makes programming and customizing your e-bike settings simple and accessible, allowing you to optimize performance [Note]This Bluetooth is a and is only suitable for controllers (Manufactured after July 2022),If you don't know how to tell whether your machine is old or , if you can't confirm this information, please contact us to help you confirm Color: As Shown Material: plastic Package Contents: 1 * programming dongle 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.