Check the listing for details. Plantronics C510-M USB Headset. Color: Black, Condition: Used. Listed at 24.50 USD. Plantronics C510-M. Condition is Seller refurbished. Shipped with USPS Priority Mail. Description Meet the Blackwire 500 Series corded USB headsets with our industry-first Smart Sensor technology. It easily and intuitively juggles PC calls and multi-media using audio alerts to manage connection, mute and volume status. With easy portability, it offers premium hi-fi stereo audio (Blackwire 520) and all-day comfort at your desk or at home. Features & details USB HEADSET: Monaural USB headset with microphone (Blackwire 510) is ideal for users who prefer to leave one ear open to their environment. SMART SENSOR TECHNOLOGY: Intuitively manages calls and audio so you can answer a call by simply placing the mono headset on your head. COMFORTABLE DESIGN: Simple, intuitive, inline controls on the USB headset let you answer/end, mute, and control the volume of your calls with ease, while ultra-soft leatherette ear cushions and lightweight headband means all-day comfort and a secure fit. DYNAMIC EQ: Microphone headset with dynamic EQ feature optimizes your voice quality when on calls and automatically adjusts the EQ settings when you’re listening to music or multi-media playback COMPATIBILITY: Plantronics headset is built to work with Amazon Connect, Chime and other UC applications and softphones from Microsoft, Avaya, Cisco and others.