Blackwire® 300 Series

Take a Good Look

Step smartly into UC

Enter UC with a headset designed (and priced) to lead the way. Blackwire 300 series USB headsets offer professional sounds in a durable and comfortable design, making them a no compromise, budget-friendly solution for the enterprise.

Wearing style options

Two wearing styles available: hi-fi stereo (C320/325) for those who want a richer, immersive experience or monaural (C310/315) design for users who prefer to leave one ear open to their environment.

  • Blackwire 310/320 are the base models featuring basic foam ear cushions.
  • The Blackwire 315/325 are the value models that feature leatherette ear cushions that fold flat for easy portability in the included soft carrying case.


Lightweight design

A lightweight metal headband offers durability and a custom, comfortable fit.

Simple call management

Answer/end/mute/vol +/- controls simplify call management while smartly placed indicator lights and in-ear audio alerts provide helpful but non-obtrusive user call, mute, and volume status.

Outstanding audio quality

Wideband audio, a noise-cancelling microphone, along with Enhanced Digital Signal Processing (DSP), delivers clear, natural, and rich audio.

Dynamic EQ

A dynamic EQ feature optimizes your voice quality when on calls, and automatically adjusts the EQ settings when you’re listening to music or want high-quality sound for multi-media playback.

Carrying case

Provides a secure and convenient transportation option (C315/325 only).

Rapid deployment, future ready

No hassle installation, and UC Toolkit resources promotes painless IT deployment and management while upgradable firmware/software ensures compatibility and feature support so you’re ready for your next communication steps.


Model Choices

310/320: Comes with foam ear cushions.

315/325: Comes with foldable, leatherette ear cushions and a mesh carrying case for storage and portability.

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Packaging Contents

Headset and quick start guide

Wearing Style

Monaural (310/315), Stereo (320/325)

Audio Performance

Dynamic EQ: wideband voice up to 6,800 Hz, hi-fi stereo from 20 Hz-20 kHz (C320/325 only); echo cancellation; noise-cancelling microphone

Microphone Noise Reduction


Call Control

Call answer/end, mute, volume +/-

Hearing Protection

SoundGuard® - Sound leveling for listening comfort and acoustic limiting for protection against sounds above 118 dBA

Standard Model Number

C310 (monaural, foam ear cushions)
C315 (monaural, leatherette/foldable ear cushions)
C320 (stereo, foam ear cushions)
C325 (stereo, leatherette/foldable ear cushions)

Optimised for Microsoft® Lync™ 2010 and 2013
Model Number



Windows® or Mac OS

Service & Support

2-Year limited warranty

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