Made of material, and practical to use Bluetooth music adapter, plug and play, top sound quality Bluetooth connection, only when the ignition is switched on Allows you to stream your music to the car radio via the Bluetooth feature of the phone / smart phone. No functional restrictions of the car radio. Allows connection of an external audio source. Bluetooth 5.0 version, and compatible with 2.0 3.0 4.0 other versions of Bluetooth Microphone facilitates conversation during driving and improves driving safety A2DP Lossless sound quality Bluetooth Compatible for E60 E61 E63 E64 E65 E66 E81 E82 E87 E70 E90 E91 E92 from 2004 - 2006 NAVI is not supported SA 609 (navigation system) SA 650 (for Business Radio with CD drive) SA 661 (for Business Radio with CD drive) SA 662 (for Business Radio) Colour:Black Material:plastic Package Contents: 1 x Bluetooth Cable Adapter 1 x Microphone 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: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store