Product Variants - Sennheiser HD400 Instructions For Use Manual

• Power supply for NoiseGard™ is provided via on-board power supply system,
cigarette lighter socket or battery pack
• Fail safe operation in case of power failure
• Supply voltage for the NoiseGard™ system is processed by the in-line electronics in
the connecting cable
• Made in Germany, two-year warranty

Product variants

HMEC 302 NoiseGard™ headset
The HMEC 302 differs from the HMEC 300 in the following features:
• Connection of microphone and NoiseGard™ electronics via PJ-068 plug
HMEC 305 NoiseGard™ headset
The HMEC 305 differs from the HMEC 300 in the following features:
• No Mono/Stereo switch
• Connection of headphones, microphone and NoiseGard™ electronics to the on-board
power supply system (12–35 V DC) via XLR-5 plug
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