Sennheiser EZX 60 Bluetooth Headset - Black/Gray Noise canceling clarity-digital noise cancellation reduces background noise. Echo free conversations even when talking on busy streets. Wireless freedom-Bluetooth 2.1 + EDR ensures compatibility with all 1.1, 1.2, 2.0, and 2.1 devices. Light weight comfort, weighs a feather-light 12 grams. Flexible wearing style