Sleek and sharp edgy design on a black themeThe cool blue illumination provides a beautiful contrast against the piano black faceplate. The honeycomb pattern surrounding the volume knob gives the unit a sharp look.Built-in Bluetooth® hands-free and audio streamingFZ307AU’ s built-in wireless Bluetooth interface supports HSP / HFP for hands-free operation. You can easily communicate with the outside world by listening to phone calls through the car’s audio system and talking through the embedded microphone. And with A2DP / AVRCP support, you can enjoy music streamed from your mobile phone.Multimedia support including iPhone®, MP3 / WMA compatible front USB or SD memoryJust connect your iPhone to the source unit’s USB port to access and play music through your car’s audio system. Music search is possible using the source unit’s controls. The front USB slot also supports playback of MP3 and WMA format audio files, so you can save your favourite music onto a USB or SD memory device and enjoy them in your car.