The Plantronics 84001-01 Savi W740-M headset series is changing the way productivity-focused office professionals communicate. With three-way connectivity, easily manage and switch between PC, desk phone, and now mobile calls from a single wireless headset. With a new convertible headset we've added the lightest DECT headset on the market to Plantronics' suite of wearing styles so you can choose the one that's best for you. Optimized for Unified Communications, the system automatically updates your status to "busy" on PC, mobile and even desk phone calls so colleagues can see your availability. This intelligent system combines best-in-class sound quality, hands-free mobility and hours of talk time for ultimate efficiency.