The Plantronics C420 Blackwire. The corded Blackwire C420 headset lets you enjoy crystal clear PC/Computer audio anywhere your work happens. Designed for all day comfort, this durable headset provides users with the freedom to experience PC/Computer audio, through a high quality headset whenever they need it.  Reliable and easy to use with it's inline controls; such as a call answer/end buttons, and mute & volume controls. Completely adjustable for that perfect fit. Listen to music, desktop sharing presentations, webinars, or even web conferencing.

Main Features:

• Unified Communications standard version built for UC applications and soft phones from Avaya, Cisco, IBM and more

• The portable, corded Blackwire™ 420 headset lets professionals enjoy crystal clear PC audio no matter where work happens
• The headset can be folded flat on a desktop, or stowed in laptop bag for easy mobility
• A soft travel carrying case provides extra protection and cord management
• Noise-canceling microphone limits outside noise interruptions, ensuring great audio quality and easing listener fatigue
• Echo cancellation for full-duplex speakerphones when both the microphone and speaker are on at the same time
• Hi-Fi audio with stereo sound optimizes music and video quality
• Wideband microphone provides the best PC audio telephony available
• SoundGuard® technology provides protection against audio spikes
• Easy volume adjustment with +/- and mute button, that syncs with Windows audio controls, simplifies operation
• Microphone, soft ear cushions, and a soft headband adjusts for perfect fit and extended wear
• Ideal for users requiring a portable headset for use with PC audio, video, webinars, conference calls, live PC presentations with desktop sharing, music
• Total-focus sound reduction binaural design