brand and high quality Features: - Function via Bluetooth-enabled devices - No functional limitations of the car radio - Allows you to connect an external audio source - It is possible from your smartphone to your car stereo to stream - Pair your phone with our Bluetooth-compatible module,and choose Aux from your radio. - You can enjoy music from your phone through car speakers. - Work for iPod/for iPad/for iPhone ,for Samsung,for HTC,for Sony,for Nokia and any other phones or pads(Pls make sure there is Bluetooth-compatible function in your phone or pad) - Bluetooth-compatible 4.0 system, and compatible with other versions of 2.0 3.0 4.0 Bluetooth-compatible system, support commonly used MP3 format audio, but also support WMA WAV FLAC, and other high-quality audio format decoding, non-ordinary Bluetooth-compatible functions, can support DSD large capacity transmission. - Easy to install Compatible for : 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 Cabriolet/Convertible) 2002 - 2008 for BMW (E65) (E66): 735i, 735li, 740i, 740li, 745i, 745li, 750i, 750li, 760i, 760li (and diesel) for M-ASK, ASK-CD and CCC for BMW 1er Serie (E87, E88, E81, E82),Serie 3 (E90-E91-E92) Material: Plastic Voltage Input : 4.5V ~14.6V DC Operating Temperature: -35~+75 DAC Resolution : 20bit Total Harmonic Distortion : 0.05% SN Ratio : 90dB Frequency Response : 20HZ-20KHZ Black: GND- Red: 12V ACC+ Connector:12Pin Bluetooth-compatible module connector:12V Package includes: 1x 12Pin Bluetooth-compatible Adapter Aux cable