Plantronics CS50 Wireless Headset Plantronics CS50 Plantronics CS50 Wireless Headset Polycom Certified Savi 7310 + EHS Remote Answer wireless headset package. This package consists of the Poly Savi 7310 wireless headset bundle together with Polycom certified remote answering adapter (EHS cable). This headset package allows the wireless headset (Savi 7310) to answer and end-call your Polycom IP phone remotely away from your desk, up to 500ft away, Poly Savi 7310 is an over-the-head only headset, Enjoy the premium wideband audio quality and awesome wireless range. Certified Compatible with Polycom SoundPoint 335, 430, 450, 550, 560, 650, 670, VVX 101, VVX 201, VVX 300, 301, VVX 310, 311, VVX 150, 250 VVX 350, 450, VVX 400, 401, VVX 410, 411, VVX 500, 501, VVX 600, 601, VVX 1500 Also compatible with the new Poly Edge E series phones: E220, E300, E320, E350, E400, E450, E500, E550 (do not order if your phone is not listed or call if you want to be sure) Key Features: Includes Polycom remote answer EHS adapter Dual connectivity - for Both desk phone, PC or Mac (both USB-A and USB-C cable included) 256 bit AES encryption - Highest level DECT Security Wireless range up to 500 feet (line of sight), 250ft in a typical office with walls and other office equipment. voice only DECT (1.9Ghz) technology, No Wi‐Fi interference weight only 104g. Up to 13 hours talk time on a single charge (5 days of standby) Two year warranty What is included: Poly Savi 7310 headset and base AC adapter Telephone interface cable USB-A cable USB-C cable Polycom remote answer adapter