Plantronics Savi W740 . . . Product # 83542-01 . . The Plantronics Savi W740 Savi wireless headset system delivers the best in voice communication. With three-way connectivity you can easily manage and switch between PC, desk phone, and now mobile calls from a single wireless headset. This system offers a longer wireless range for natural movement, a variety of comfortable wearing styles, interactive software for personalization and an adaptive battery system for longer battery life. The Savi W740 gives you an energy efficient option to power usage. . . Savi W740: . . Replaces Plantronics WO100 . . . . |Up To 350' Range |New DECT 6.0 Technology . - DECT Security Certified . - Interference Free Communication . - Increased Clarity / Enhanced Security . - Wider Range / Network Friendly |1.9GHz Wireless Headset . - Dedicated for Cordless Phones by the FCC . - 30% Battery Life Increase Over 5.8GHz |Up To 7 Hours Talk Time |Mute |One-Button Answer |Noise-Canceling Microphone |Adjustable Volume |Digital Signal Processing Technology. Enriches Sound Quality |Wireless Headset