Function via Bluetooth-enabled devices. Compatible with Alpine car radios. Connect an external audio source to your car stereo. Stream music from your smartphone to your car speakers. Pair your phone with the Bluetooth module and select Aux on your radio. Works with iPod, iPad, iPhone 5/5C/5S/6/6 Plus, Samsung, HTC, Sony, Nokia, and other Bluetooth-enabled phones or tablets. Bluetooth version 4.0, backward compatible with versions 2.0, 3.0, and 4.0. Supports MP3, WMA, WAV, and FLAC audio formats, including high-quality audio decoding. Supports DSD large-capacity transmission. Easy installation. Connect the red power cable to 12V+ and the black power cable to 12V-. Bluetooth module connector: 12V. Cable length: 20cm (approx.). Color: Black. Material: Plastic. Package includes: 1 x Bluetooth AUX audio cable (in OPP bag). No other items included. Note: Lighting and display differences may cause slight color variations between the image and the actual item. Measurement error allowed: +/- 1-3cm.