Wireless headset for high-quality voice calls. Includes an ultra-compact dedicated USB Bluetooth adapter. #Plantronics #poly #Poly Although unused, the item has been opened to check the accessories and charge the charging case. I purchased this for both work and home use, but I am selling the one I didn't use at home. (The following is quoted from the product page) The Voyager 3200 UC wireless headset system combines the Voyager 3200 headset, which supports wideband (broadband VoIP), with an ultra-compact dedicated USB Bluetooth adapter that is plug-and-play and requires no driver installation. This headset system provides a comfortable wireless calling environment for users of unified communication products and VoIP softphones such as Skype. The new Smart Sensor technology installed in the headset body detects the wearing state of the headset and automatically turns Bluetooth links on/off, answers incoming calls (compatible models only), and plays/pauses audio (AVRCP compatible models only). The dedicated software "Plantronics Hub" supports answering/ending calls on VoIP softphones. In addition, multi-point technology allows you to switch between VoIP softphones and Bluetooth-enabled devices such as mobile phones with a single headset. The Voyager 3200 is equipped with the latest technology for the most effective noise cancellation effect thanks to its three microphones and DSP (digital signal processing), boasting high sound quality and higher call quality, and realizing clear and noise-free voice calls even on windy street corners or in crowds. In addition, efforts have been made to provide a safe and comfortable fit based on strict ergonomics. - Model Name: Voyager 3200 UC - Brand: Plantronics - Accessories: Charging case - Manual: Quick Start Guide - Cable: USB charging cable Thank you for viewing.