Purchased new from e-earphone in July and used for about a month with HD800. Total usage time is around 10 hours. Since I replaced the ear pads with aftermarket ones in September, it has been stored in a dehumidified storage case. 【Condition】 I always tried to keep my headphones clean, so there are no odors, stains, or scratches. Some small dust particles are present, but please understand that the material tends to attract dust.