BLACKWIRE 3200 SERIES|The Blackwire 3200 Series corded UC headsets are durable, lightweight, easy to deploy and come in a variety of connectivity and wearing options. Add insights from Plantronics Manager Pro, an additional service, and you've got a future proof solution. The Blackwire 3200 series with Poly's signature audio provides top notch features at a price you can afford. Available in monaural (C3210/C3215) or hi-fi stereo with passive noise reduction (C3220/C3225)., Variants include universal USB or USB-C., Connectivity to smartphone and tablet via 3.5 mm (C3215/C3225)., Intuitive inline controls to answer/end calls, control volume, and mute., PC wideband audio with noise-canceling microphones for high-quality PC telephony., Plantronics Manager Pro, an additional purchase, enables your IT team to gain insight, into every compatible Plantronics headset being used company-wide.