Yealink TEAMS-BH72-GY Usb-a Bluetooth Wireless Stereo Headset, Grey, Wireless Range Up to 100 ft, Mono/Stereo, Call Controls On Headset, On Call Indicator, Talk Time Up to 35 hrs, Speaker Size 35mm. The Yealink BH72 Teams Certified USB-A Stereo Headset is a professional-grade wireless Bluetooth headset that combines cutting-edge technology with a stylish design.