Sony NC85D is Sony's dynamic iron and active noise reduction headset. Known as the lightest and smallest active noise reduction earphone in the world, the active noise reduction earphone with the appearance of a battery box is directly integrated into the cavity. 13.5mm movable iron unit is adopted, which is full of iron flavor. In terms of active noise reduction, Sony's own DNC Software Engine is used. With the equalizer, the noise reduction effect can reach 97.5%, and the 20 hour endurance is enough.

SONY NC85D's historical low price is 129.94 US dollars, about 790 yuan, and the purchase price is about 900 yuan. The domestic Taobao search is at the pace of 2K+, and the price advantage is very obvious.