Plantronics Blackwire C310 (Monaural) 85618-02 VoIP and Chat The Blackwire C520 is a

The Blackwire C520 is a portable headset

*Sensor answer feature available for desk phone calls when used with HL10 lifter or EHS cable

Features compatibility with the Plantronics On-line Indicator accessory

or pause mobile device media playback by taking it off – making it the most productive and versatile “corded” headset on the market

When it's time to crank up your music

Plantronics Blackwire C310 (Monaural) 85618-02 VoIP and Chat The Blackwire C520 is aUSB Corded Headset Plantronics Blackwire C310 Over the Head Monaural Headset, UC Standard version Built for UC Applications and Softphones from Avaya, Cisco, IBM and More MORE UC HEADSET FOR YOUR UC DOLLAR. Enter UC with the best featured headset you never thought your budget could afford. Blackwire 300 Series USB headsets are a simple to use, comfortable, and durable choice for conference calls, Web based training, and PC multimedia applications.