High-performance, USB audio processor enables more effective communication operations for telephone-intensive users. Advanced technology detects when the headset is disconnected and will automatically activate screen-locking for security compliance. Easy, at-your-fingertips interface enables representatives to bypass on-screen call control menus for better focus on callers. Quick disconnect (QD) feature provides walkaway convenience. Enhanced noise-canceling and echo management ensure clear and crisp audio. Audio processor is designed for use with all Plantronics QD-equipped headsets (sold separately).