[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 new controllers (Manufactured after July 2022),If you don' know how to tell whether your machine is old or new, if you can' 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.