After listening for only a couple hours starting with a full charge, it was already 3/4 drained. I use AutoCAD 2013 on a HP touchscreen and like the Arc mouse and its touch scroll. Incroyable produit. Not a fan of the new smell. The band is adjustable and is good quality so it doesn?t keep snapping down or up after I put the headphones on. They have lasted me over a year now, and I constantly step on them. Well they may be less expensive but their longevity is not good. I figured it must be a hardware problem. Este producto no ha llegado I find a bit of distortion if I have them loud and there is a ton of guns and explosions simultaneously.