PRO™ 9400 headsets unite your desk, mobile and soft phones by an intuitive, stylish touch screen base that offers a wireless range of up to 450 ft. Equipped with a simple SmartSetup wizard, the touch screen helps you connect phones and choose preferences to get started in just a few minutes. Once you're up and running, the colorful icons and intuitive menu system make call-handling a breeze. Headset Type: Monaural; Headset Style: Convertible; Talk Time: 10 h; Maximum Wireless Range: 450 ft.