Bluetooth wired external microphone included aussi mircophone build in Bluetooth for hand-free Bluetooth music player supports USB / Micro SD supports usb flash drive, mp3 player and Micro SD card with up to 16GB of storage fitments the compatibility is just for reference. Please compare your original one before purchasing!For a4 b6 b7 s4 note: 1. We provide clear pictures, measurements Where possible. Please check as much as possible, to make safe the item is The One That you need. Please allow 0.5-1 inch difference due to manual measurement. Professional Installation is highly recommended! Package included: 1x 1x rear camera for player 2x USB cable 1x English manual 1x GPS antenna 1x 2x power radio adapt harness power cord 1x 1x 2x screws can bus decoder. All major credit cards are accepted by sécurisépaypal payment processor. Payment must be received within 7 business days of the auction closing. Items will be shipped within 1-3 business day when we received the payment. Delivery time depends on destination and other factors. The item \fi, video, gps \ multimedia embedded \ main units stereo systems. \The seller is \This article can be shipped worldwide.