3 ms·Or headphones that last a long time, rather than falling apart after a few years.by robonerd 5y agoOr headphones that last a long time, rather than falling apart after a few years.iso1210 5y agoI think I've had my Bose 25s about 8 years, replaced the pads a couple of times but other than that they've worked welljacquesm 5y agoKeep them carefully, the new ones aren't nearly as good.