With the Poly Savi 8400 Office series headset system, you can stay focused on your tasks while enjoying crystal-clear conversations thanks to a noise-canceling microphone with close conversation limiting. Enjoy the convenience of hands-free calling and a longer roaming range with the Poly Savi 8400 office series. With up to 13 hours of talk time and the ability to roam up to 590 ft / 180 m means you can keep the calls going, even away from the desk [2]. Designed for the modern office with 3-way connectivity, the Poly Savi 8400 office series is the perfect solution for business calls allowing you to stay connected in the office. You can even conference four headsets together with the base for increased productivity. Poly Savi 8410 Office Monaural Microsoft Teams Certified DECT 1920-1930 MHz Headset|8L7E9AA#ABA|HP Poly