Samsung HM1900 Wireless Hands Free Bluetooth Headset (Promo w/USB) - Grey Simple Pairing technology automatically pairing with the closest Bluetooth-enabled device Built-in voice prompts can tell you when you need to recharge your headset, when youve successfully connected to a device, usage instructions and more Delivers top-notch sound via its built-in noise reduction and echo cancellation technology, ensuring crystal clear call clarity, even in noisy environments