Feature: *Brand new and high quality *It is durable and convenient. *Easy to install and remove. *Using Bluetooth main control chip, Bluetooth 5.0 version, high-speed transmission without distortion, sound quality up to high-definition standards. *The car bluetooth music player has the function of wireless music transmission. *If you use bluetooth transmission, you can also play music online *According to the interface reserved at the back of the original car host, equipped with different connectors for plugging *The product uses a wide range of voltage input to adapt to different use environments Specification: *Bluetooth name: JieRui-BT 5908 *Bluetooth version: 5.0 *Product voltage: 5-12V Application: 2002 - 2003 For BMW (E39):525i, 525iT, 530i, 530iT, 540i, 540iT & M5 (Sedan) 09/2002+ 2002 - 2006 For BMW (E53):X5 3.0, 4.4, 4.6, 4.8 and X5 M 10/2002+ Package included: 1* Aux bluetooth adapter Note: 1.Please allow 1-5mm deviation due to manual measurement. 2.Due to light and screen difference, the item's color may be slightly different from the pictures.