Be more mobile and productive with this Bluetooth® headset that lets you simultaneously connect to and switch between your mobile and soft phone. Included LINK™ 320 USB Bluetooth® adapter is a true plug-and-play device with no driver requirements, especially designed for the active professional in the office and on the move. Noise Blackout™ Extreme technology eliminates background noise without compromising your natural voice quality. Ultimate fit Eargel™ ear hook provides all-day comfort. Headset Type: Monaural; Headset Style: Over The Ear; Earpiece Type: Earhook.