Blackwire® 700 Series

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Dual connectivity

UC headset for knowledge workers who need a seamless solution for managing calls on their PC, mobile phone or tablet.

Smart Sensor technology

Smart Sensor™ technology intuitively manages calls and audio: Answer a call by simply placing the headset on your head. Listening to music? Simply remove the headset to pause media playback from your mobile device.

Wearing style options

Two user wearing options: hi-fi stereo (dual ear) for those who want a richer, more immersive audio experience or mono (single ear) for users who prefer to leave one ear open to their environment (pictured above).

Both feature a lightweight headband for all day comfort.

Go mobile

Take your mobile calls with you – detachable cable and integrated clothing clip provide in-office mobility with up to 10 hours of talk time.

Professional audio quality

Premium PC wideband audio with noise-canceling microphone, Digital Signal Processing (DSP) for natural voice sound, and SoundGuard® for protection against audio spikes.

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

Indicator lights

Inline indicator lights and voice prompts give connection, mute and volume status. 

Lights on the ear pad let colleagues know when you’re on a call. 


Integrated A2DP lets you listen to streaming media from your mobile device, including your favorite songs, podcasts and more.

Durable carrying case

The ultra-soft leatherette ear cushions fold flat to store headset in the durable carrying case for use on-the-go.

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Getting Started

Connect to Your Computer

Connect USB cable to PC and in-line controller.

Mobile talk button will flash red and blue for initial pairing.


Packaging Contents

Headset, USB cable, carrying case and quick start guide

Wearing Style

Monaural (710), Stereo (720)

Talk Time

Up to 10 hours, up to 10 days standby time, up to 6 hours listening time (A2DP)

Audio Performance

Dynamic EQ, microphone frequency response 100 Hz–8kHz optimal for wideband voice telephony (up to 6,800 Hz), hi-fi stereo output from 20 Hz–20 kHz (C720 only), enhanced digital signal processing (DSP), noise-canceling microphone, A2DP

Hearing Protection

SoundGuard®: Sound leveling for listening comfort and acoustic limiting for protection against sounds above 118 dBA (PC/mobile)

SoundGuard DIGITAL®: Anti-startle protection detects and eliminates sudden increase in sound and limits the level to 105 dBA; Time Weighted Average (TWA) measurement prevents average daily sound exposure from exceeding 85 dBA (PC only)

Microphone Noise Reduction


Call Control

Call answer/end, mute, volume +/-

Standard Model Number


Optimized for Microsoft® Lync™ 2010 Model Number



Windows® or Mac® OS

Service & Support

2-Year limited warranty

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