Boasting finely-tuned 40mm Neodymium drivers, the HN-900 headphones are capable of reducing surrounding noise by up to 85%.With a detachable cable with in-line microphone for voice communication on the iPhone, users can still use the headphones in passive mode without noise cancellation when the headphones run out of battery.
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|Driver Unit||40mm Neodymium magnet drivers|
|Frequency Response||Headphones: 20Hz~20kHz / Microphone: 100Hz~10kHz|
|Impedance||Headphones: 290ohms / Microphone: <2.2kohms|
|Sensitivity (1kHz)||Headphones: 100dB/mW / Microphone: -38dBV/Pa|
|Cord Length||1.5m (detachable with inline microphone)|
|Other features||Noise Reduction Level of -18dB / Microphone Type: Omni-directional|