The innovative Plantronics DuoPro offers all day comfort and best-in-class sound quality. innovations offer unsurpassed comfort, and the patent-pending anti-twist boom ensures innovative features than any other headset: there is the “uncompromising” design of our convertible model that delivers superior comfort, sound and reliability; the unique double your ear; the ergonomic earl-oop for over-the-ear convenience, exceptional comfort and Quick Disconnect feature allows you to walk away from the phone while still wearing your headset Polaris direct-connect versions available (Plantronics P171) for use with headset-ready phones and agent consoles. Buyer is responsible for paying any governmental taxes imposed on your purchases, including, but not limited to, sales, customs, use or valu.