Product # 84692-01. . The Plantronics CS520 is an over-the-head binaural (cover both ears) wireless headset. The CS520 features a new contemporary headset design, premium wideband audio quality, wireless mobility, streamlined base and improved performance all with the same dependability for wireless productivity that has made the CS series a best seller.. . The CS520 features a secure fitting headband for all day comfort weighing 92 grams, giving you up to 350 feet (100 Metres) of range to roam your office, and a battery made to last all day with 9 hours of talk time. By covering both ears with the CS520, you're able to focus on your caller and never distracted by background noise in your office.. . CS520:. . |1.9 GHz Cordless Headset|DECT 6.0 Technology. - DECT? Security certified|Gain Mobility. - Multitask &. - Hands-Free Upto 350 Feet (100 Meters)|One-Touch Call Answer / End|Volume, Mute & Flash Controls|One-Touch Controls|Energy Efficient Adaptive Power System|Conference In Upto Three Additional CS500 Or Savi Headsets|New Headsets Can Subscribed By Simply Docking The Headset|Noise Canceling Microphone Filters Out Background Noise|Voice-Dedicated DECT 6.0 Technology Eliminates Wi-Fi Interference|Enhanced Digital Signal Processing (DSP) Provides More Natural Voice Sounds|Advanced Wideband Audio|CAT-iq Technology|Use W/ Electronic Hookswitch Cable Or Handset Lifter To Remotely Answer/End Calls. . |Connects To:.