It is also really practical as it works brilliantly. I also noticed a reasonable boost in low end response from the better seal. This unit does not come with a charger, on top of that, I don?t own a compatible one, 9V/2AThankfully the unit had a huge warning sticker, before I slapped any charger to it :)! Im really pleased and pleasantly surprised with these headphones. They work great for doing outside chores -- quick to slip on, easy to clean. But, these are very comfortable. Compact design. It has an industrial look, which I like. They are made of a soft rubber so right out of the box (actually they came in a zip-lock bag) they felt fantastic. Ive been using the T12 and this case is significantly smaller and lighter.