Factory Essentials HD251QD with U10 - Mono headset with USB-A Adapter. Comparable to Plantronics SupraPlus HW251 with DA45. Works with Phones and PC

The Factory Essentials HD251QD Mono-with-U10 is a Direct Connect Over The Head Headset. The Soft Leathered Ear Cushions provide All-Day Comfort, and also the Superior Quality Sound with the Flexible Adjustable Microphone makes it more comfortable. The Noise-canceling microphone filters out background noise so voice transmission is exceptionally clear. The quick-disconnect feature provides an easy way to step away from the phone without disconnecting the call or even removing your headset. A 10-foot cord gives you a generous range while you're connected. HD251QD-Mono Features: QD to USB HeadsetNoise-canceling MicrophoneLeathered Ear CushionsFlexible Adjustable Microphone10-foot Length CordDriver Unit: 1×30mmFrequency Response: 20-20kHzImpedance: 150 ohmSensitivity: 125dBMax input power: 10mWPlug: QD(Quick-Disconnect)