Feature:1. Wireless music transfer with all enabled mobile devices which Compatible with Bluetooth (for iPhone / for iPod / for iPad / Smartphones etc.)2. Charging function via USB.3. Control directly via smartphone / for iPod / for iPad.4. Change between USB (red LED) and for Bluetooth (blue LED) with button on the adapter cable.5. Powered by the USB port on the cigarette lighter (DC 5V, 25-50mA).Specification:Item Type: USB Aux Cable AdapterMaterial: PlasticCable Length: Approx. 12cm / 4.7inPowered by the USB port on the cigarette lighter (DC 5V, 25-50mA)Compatible with Bluetooth Distance: Approx. 10m / 32.8ftCompatibility:Suitable for with for AMI (for Music Interface) and for MMi 2G - recognizable by:Fit for No memory card or sim card connections in the glove boxFit for Monitor with color display (not black / red, monochrome)Fit for Navigation computer in the trunkFitmentFit for A4 8K (all models with for MMi 2G High)Fit for A5 8T (all models with for MMi 2G High)Fit for A6 4F (all models with for MMi 2G High)Fit for A8 4E (all models with for MMi 2G High)Fit for Q7 7L (all models with for MMi 2G High)Not Applicable ModelNot Fit for MMi 3G or Not Fit for MMi 3G +Installation:for AMI (for Music Interface) or for MDI (Media IN Interface) must be present in for MMi switch to "Media"Switch source to "AUX"Connect adapter cable for AMI or for MDI instead for iPod or USB cableConnect USB power to the USB portLED indicates mode: Blue = Compatible with Bluetooth, Red = USB.Package List:1 x USB Aux Cable Adapter