Accessory for iPhone / Whether you are in the street or driving along the motorway, ambient noise can seriously affect the quality of your calls to friends and colleagues. This Bose Bluetooth headset provides you and your caller with improved sound quality that adapts as noise levels change. The TriPort acoustic structure and Adaptive Audio Adjustment combine with the noise-rejecting microphone system to ensure that your call is as noise-free as possible and maintains the quality of the original sound source. Stream content from your iPhone or iPod, direct to the headset, allowing you to switch between your music and your calls. The Bose Bluetooth Headset Series II also features a selection of soft silicone StayHear tips to keep the headset comfortably in place for hours.