Sennheiser sound

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Noise canceling clarity

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Reliable speech recognition

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Keep one ear free

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Fully flexible boom arm

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Noise canceling clarity - the microphone filters out ambient noise, so your voice is always clear and easy to understand

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Reliable speech recognition - the microphone is specially designed for your deviceu0026#39;s speech recognition function

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Keep one ear free - the single-sided design keeps you in touch with your surroundings

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Fully flexible boom arm - adjust the microphone for optimal voice pick-up and comfort

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Light and comfortable - with the lightweight headband, itu0026#39;s easy to forget you are even wearing a headset

nThe PC 21-II is a single-sided headset that lets you enjoy phoning over the internet – while keeping an ear on what’s going on around you. It’s easy-to-use, and features improved noise-canceling technology for great voice clarity. It is ideal for using speech recognition applications.