Sennheiser MM 400-X

We haven't had a chance to fully test this product yet, but we've assembled this helpful overview of relevant information on it.

Sennheiser’s supra-aural MM 400-X headphones integrate wireless Bluetooth 2.1 technology, a discrete microphone, cushioned ear pads, and a DuoFol transducer system. The MM 400-X additionally features a 15 – 22,000 Hz frequency response, and 107 dB/mW sensitivity.

Features List:

  • Wireless Bluetooth 2.1 technology
  • Discrete microphone
  • Cushioned ear pads
  • DuoFol transducer system
  • 15 – 22,000 Hz frequency response
  • 107 dB/mW sensitivity

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