Exclusive Bose technologies let you hear calls better, even as noise levels changeNoise-rejecting microphone allows callers to hear more of your voice-in windy and noisy environments tooSoft, flexible StayHear® tip provides comfort and stabilityA2DP Bluetooth profile enables mobile media content, like music or podcasts, from your smartphoneSimple, convenient controls make it easy to answer callsChoice of left- or right-ear version, whichever you prefer, for best possible fitKeeping in touch when you're on the move can be challenging. The Bose Bluetooth headset Series 2 meets the demands of on-the-go communications, from crowded terminals to noisy traffic. It's engineered to react automatically as noise levels change, allowing you to hear your end of the call better. Plus, an exclusive noise-rejecting microphone system helps your caller better hear you above both noise and wind. The Bose Bluetooth headset is compact, light and well-balanced, and now you can choose between right- or left-ear versions.