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NCH bhi ANR Noise cancelling headphones
* Frequency response 20Hz - 20kHz * Noise cancellation 12dB * Impedance 32 Ohm * SPL 100dB@1kHz * Lightweight * Folding design * On/Off switch with LED * 1.6m cable with 3.5mm jack plug * Supply: AAA battery * c/w carry pouch, AAA battery and 2-pin aircraft adaptor
These Ambient Noise Cancelling Headphones cancel background noise such as fan noise from computers and printers. They do this by inverting the ambient noise to cancel it out. They are supplied with an aircraft audio adaptor so you can listen to films or cd without the jet engine noise whilst travelling on an aircraft. Powered by AAA battery, the noise cancelling can be switched off if not required.
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