Thanks to usb and 3.5mm connectivity, the blackwire c5210 headset can be used in many ways and connected to various devices. The ergonomic design makes it very comfortable to wear. All day wearing comfort and universal connectivity if you need to wear your headset all day, the blackwire 5200 series offers you the ultimate in comfort. Its ergonomic design makes it comfortable to wear throughout the day, even during long conversations. You can also connect it to various compatible devices to help you work freely anywhere in the office first class audio quality a noise cancelling microphone with flexible microphone boom filters out background noise easy to use simple intuitive inline controls for easy call management wearing comfort all day long, even for frequent callers padded, dual loop on headband outstanding sound quality for more productivity modern workplaces are often loud and full of distractions. With the blackwire 5200 series, you can hear and be heard better, enjoy privacy in conversations and be more productive. It features soft, comfortable ear cushions with passive noise cancelling and a precisely aimed microphone that eliminates nearby voices. A headset that adapts to the way you work adapt your headset to the way you work. The special, customizable mute feature provides privacy when you're on the phone and ensures that you're always easy to hear. Set your voice prompts to give you even more control over your calls. Highlights ideal for all day use or long conferences noise cancelling microphone for first class calls answer or end calls, change volume or mute with one click usb and 3.5 mm connectivity ergonomic design for high wearing comfort technical specifications connection options pc via usb, mobile phones and tablets via 3.5 mm port and devices with usb a support ideal for users with a high communication workload at the pc and high multimedia usage audio performance dynamic eq function, microphone frequency range 100 hz 8 khz optimal for wideband voice telephony up to 6,800 hz, hi fi stereo playback c5220, c5220, usb c only output 20 h 20 khz, improved digital signal processing dsp, noise cancelling microphone, customizable voice announcements with plantronics hub software mute volume hearing protection soundguardreg digital provides protection against noise levels above 118 dba limiting acoustic shock responses identifying and reducing sudden sharp increases in signal strength averaging measurements with time weighting prevent daily average noise levels from exceeding 85 dba supported by plantronics hub. Additional low volume hearing protection against acoustic shock using plantronics hub software reduces noise spikes to 102 dba. C5210 usb monaural c5210 usb c monaural c5220 usb stereo c5220 usb c stereo for uc applications and softphones from avayareg, ciscoreg, microsoftreg and others. Certified for skype for business download the latest version of the plantronics hub software to enable one touch answer end calls with these softphones.