Plantronics Blackwire C710 Headset - Mono - Black - USB - Wired/Wireless - Bluetooth - 20 Hz - 20 kHz - Over-the-head - Monaural - Supra-aural - Noise Cancelling Microphone 87505-02

Corded reliability meets wireless flexibility. The Blackwire 700 Series is the versatile UC headset that offers high-quality PC audio and seamless Bluetooth connectivity to mobile phones and tablets. Enjoy unmatched audio quality, industry-first Smart Sensor technology that automatically answers a call when you put on the headset, and a detachable cable for taking your mobile calls throughout the office.