RIO Gear Bluesonic Hcb39 Bluetooth Headset with Noise Cancelling-professional levels Noise cancellation technology blocks background noise and allows for clearly cellular transmission Adjustable boom mic Supports voice dialing, three-way calling and call waiting by touching a single button (contact your cell phone provider for more information) Compatible with most Bluetooth-capable cell phones Includes AC Adapter and car charger, item can be shipped only within the U.S.