Function via Bluetooth-enabled devices No functional limitations of the car radio Allows connection of an external audio source Stream audio from your smartphone to your car stereo Pair your phone with the Bluetooth module and select Aux on your radio Enjoy music from your phone through car speakers Compatible with smartphones and tablets that have Bluetooth functionality Bluetooth 4.0 system, backward compatible with Bluetooth 2.0, 3.0, and 4.0 Supports MP3, WMA, WAV, and FLAC audio formats Capable of high-quality audio decoding DSD high-capacity transmission supported Easy installation Fitment: 2004–2010 for BMW E60 5-Series: 525i, 525it, 528i, 528it, 530i, 530it, 540i, 540iT, M5 (Sedan and Touring) 2003–2010 for BMW E63/E64 6-Series: 630Ci, 630i, 645ci, 650i, M6 (Coupe and Convertible) 2002–2008 for BMW E65/E66 7-Series: 735i, 735li, 740i, 740li, 745i, 745li, 750i, 750li, 760i, 760li Compatible with M-ASK, ASK-CD, and 1/2 Series (E87, E88, E81, E82), 3 Series (E90, E91, E92) Electrical Specifications: Voltage Input: 4.5V–14.6V DC Operating Temperature: -35°C to +75°C DAC Resolution: 20bit Total Harmonic Distortion: 0.05% Signal-to-Noise Ratio: 90dB Frequency Response: 20Hz–20kHz Wiring: Black: GND Red: 12V ACC+ Connector: 12Pin Bluetooth Module Connector: 12V Color: Black Material: Plastic Package Contents: 1 x Bluetooth Adapter Note: The package includes only the items listed above. Other accessories are not included. Lighting and display differences may cause slight color variations between the product image and the actual item. Measurement may vary by +/- 1–3 cm.