I bought 1 set of Audio-Technica ATH-M30X Professional Headphones and these had less than 24 hours total use (all indoors) and never even left my bedroom, always inside the leather case provided by the supplier. Well, to my complete and utter dismay, the right headphone failed 2 weeks ago and now an expensive pair of "quality" headphones goes straight into the recycling bin. After emailing the supplier (DJ and Studio in the UK) via Amazon, they didn't even bother answering so am just left with a total loss + waste of time and money - word of warning - stay well away from their headphone products, you will regret you purchased them! There are tons of fake 5 star reviews on Amazon for their products - do NOT be tricked into believing them! Stay safe and save money.