High-performance noise canceling microphone filters out background noise3 wearing styles provide greater range of options: over-the-ear over-the-head and behind-the-neckSingle-wire design for greater range of motionKink-free highly flexible gooseneck boom to place microphone at desired positionHigh-quality speakers deliver clear and consistent municationDurable construction meets the constant demands of all-day useCompatible with headset-ready phone (no amplifier needed) Plantronics and VXi P-series direct connect cords (all sold separately)2-year warrantyIncludes earhook headband and neckband