Plantronics - CS540 Wireless DECT Headset (Poly) - Single Ear (Mono) Convertible (3 wearing styles) - Connects to Desk Phone - Noise Canceling Microphone

Connects To: Desk phones via included cable.Compatible phone models:iPhone Ideal For: Office and desk-centric workers using desk phones Audio Performance: Keep background noise out of your call with a noise-canceling microphone Convertible Wearing Style: Customize your look and feel for all-day comfort—lightweight, convertible design comes with 3 wearing options (over-the-ear, over-the-head or behind-the-head* *Behind-the-head neckband sold separately) Talk Time and Roaming Range: Work better, hands-free, with a roaming range of up to 120 m/400 ft. Talk all day with up to 7 hours of talk time per charge