Note: This display plug is a triangular green plug, which is only suitable for motors and a few hub motor controllers. CAN program, M400, M500, M510, M600, M560, M420, M800, M820 can be used.The high-contrast TFT LCD color LCD screen can clearly provide data for riders to read easily even under direct sunlight. The controller buttons are and easy to use. The USB port supports the connection of mobile devices, and the Bluetooth communication function can also be used to connect to the GO+ application to monitor and synchronize your riding data.Colour:BlackMaterial:plasticPackage Contents:1 x Electric Bicycle DisplayOnly 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.