Jabra Style Wireless Bluetooth Headset (US Version) - Black Auto Volume Adjustment automatically adjusts headset audio to your environment so calls are heard clearly HD Voice technology provides crisp audio and a better sound experience Clear, wireless streaming of your favorite multimedia - GPS directions, music and internet radio Instantly connect headset with NFC enabled phones or tablets. Just tap the headset to your device and you're ready to go Jabra Assist App -geo-tags headset to find last location where headset was turned on or provides location of your car