Pure Dyson audio with advanced noise cancellation. Engineered for ultra-low distortion. Filters remove viruses1, gases2 and 99% of pollutants as small as 0.1 microns3. Contact-free visor, attaches to channel purified air. Intelligent signal processing combined with active noise cancellation reduces distortion – ensuring realistic, detailed audio. Eight active noise cancelling microphones monitor surrounding noise 384,000 times a second, cancelling background noise. With two additional microphones for telephony and transparency systems.