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Our best selling NC-40 noise cancelling headphones contain inverse phase active technology which 'cancel out' background noise resulting in a more enjoyable audio experience. The 40mm driver units provide superior sound performance whilst the soft, cushioned earpads are comfortable to wear for long periods. Perfect for on a long flight, train journey, in the car or just to use at home.

• 16dB active noise reduction to cut out background noise
• High output 40mm drivers for superb sound quality
• Soft cushioned earpads for comfortable use over long periods
• Closed back, over ear design
• Neat folding design for portability
• Noise cancelling circuit powered by 1x AAA battery (included)
• Supplied with a carry bag, in-flight adapter, 1.2m cable, and 6.3mm stereo adapter

• 16db active noise reduction
• 40mm drivers with neodymium magnets
• Frequency range: 20 – 20,000Hz
• Sensitivity: 104dB/mW (power on); 100dB/mW (power off)
• Impedance: 70 Ohm ± 20% (power on); 40 Ohm ± 20% (power off)