Plantronics CS540 Wireless Convertible Headset System — 1.9 GHz DECT, Up to 350 ft Range

The Plantronics CS540 Wireless Convertible Headset System provides comfortable, mobile use with office phones and a wireless range of up to 350 ft. It uses voice-dedicated, 1.9 GHz DECT technology to deliver high-quality audio and includes digital encryption to keep conversations secure. The headset supports wideband audio and features a noise-canceling microphone for clearer speech. Expect up to 6-hour talk time on a single charge; the battery reaches 80% capacity in 1.5 hours and is fully recharged in 3 hours. Its convertible design offers 3 wearing styles so you can choose the most comfortable fit.