Bluetooth calling allows you to make and receive calls through your car's audio system, qualifying for the hands-free status many states require for use of a cell phone in a vehicle. Bluetooth Audio playback allows you to stream the music directly from your phone to the car stereo. Now you are able to listen to your MP3s or Pandora played from your mobile phone on car stereo. Bluetooth wireless audio control (AVRCP) allows you to Pause, Stop, Play, Forward, Backward, Fast Rewind your music playback via car stereo/steering wheel controls. >> The included Grom Audio 35MDN is a standard male 3.5mm aux cable that allows you to plug in any device with a standard headphone jack. >> Also included is a USB/Aux extension cable so you can flush mount it in your dash (or other location of your choosing) and give the install an OEM/factory look. >> Since removal of dash trim panels will be required for installation of the Grom components, we're including a pair of dash trim removal tools. Don't use make-shift tools or metal objects to take your panels off. They just increase the odds you'll damage your dash. Use the same kind of tools the pros do.