Plantronics Duopro Convertible Headset Three way convertible: Over-the-ear, over-the-head, behind-the-head with optional neckband wearing styles Innovative T-pad headband design, perfect balance in over-the-ear format and soft ear cushion offer all-day comfort Voice tube or noise-canceling microphone options Pivoting anti-twist microphone for optimal placement and performance Quick Disconnect feature lets you walk away from your phone while wearing your headset