Function via Bluetooth-enabled devices, No functional limitations of the car radio. Allows you to connect an external audio source The Product is specially made according to the car port, a wireless Bluetooth music product suitable for car use. Adopt Bluetooth 50 protocol, backward compatible with 20 30 40 other versions of Bluetooth protocol, can support common MP3 format audio, also support for WMA, for WAV, for FLAC, and other high-quality audio format decoding, non-general ordinary Bluetooth function, can support DSD -capacity transmission, stable data transfer between devices, fidelity, designed for music enthusiasts. Installation: The adapter is connected invisibly to the back of the radio No additional cabling necessary for the supply It is automatically recognized by the radio as a CD changer, No aux input must be unlocked consuming. Fitment: for Opel Agila 2000-2007 for Opel Antara From 2006 for Opel H From 2004 for Opel Combo 2003-2010 for Opel Corsa 2003-2006 for Opel Corsa From 2006 for Opel Meriva From 2005 for Opel Movano from 08/ 2006 for Opel Signum From 2003 for Opel Tigra Twintop From 03/ 2005 for Opel Vectra C (from 2005) for Opel Vivaro from 08/2006 for Opel Zafira from 07/2005 Compatible with the following radio / navigation systems ( with AUX function ) : CD30 MP3 CDC40 CD70 NAVI DVD90 NAVI Colour:black Material:ABS Package Contents: 1 * Audio Cable Adapter 1 * Bluetooth microphone 1 * Disassembly Only the above package content, other products are not included. Note: Light 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.