Sennheiser HMDC 322 MP3 Player Accessories User Manual


 
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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
M-87/AIC dynamic microphone and low impedance headphones
Connection of headphones and microphone via U-174/U jack plug to a low impedance
interface in the helicopter