OVERVIEW: Yealink WH63 Teams Earset Convertible DECT Wireless Headset No matter when and where your conversation begins, the headsets can always catch up your steps. With up to 120m wireless range and 8 hours talk time, it is suitable for users' daily communication needs. In addition, the product supports high density installation in the open office, which allows up to 200 users (Europe) enjoy the wireless communication at the same time.