HMEC 400 NoiseGard™ headset
The HMEC 400 differs from the HMEC 300 in the following features:
•Stylish silver design
•Leatherette ear cushions
•Headband padding can be buttoned
HMDC 322 NoiseGard™ headset
The HMDC 322 differs from the HMEC 300 in the following features:
•No Mono/Stereo switch
•Coiled cable
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•Connection of headphones and microphone via
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