Description: These corded USB headsets with Smart Sensor technology intuitively helps you manage calls. Simply put the headset on to answer a call; Smart Sensor technology automatically answers and provides audio alerts to manage connection, mute and volume status. With wideband audio, noise-canceling microphone and hi-fi stereo, you always get clear, natural and rich audio. And the unique Dynamic EQ feature adjusts and optimizes audio settings on the fly, creating the best sound for voice, music or multimedia. Blackwire C510 series headsets are business-quality communications solutions that provide unmatched audio quality, all-day comfort and easy portabilityall in a compact, durable package for smarter workers everywhere.