Bought this for my wife but have used it myself a couple times as well, and thought it was pretty good in comparison to many products she likes that leaves you feeling like you just left a bunch of good on your body. I was impressed by the quality of the sound, they sounded great. _______________________________________Update after a couple weeks - I replaced this with the Shanling UP4 and am much happier with it overall. dollar store slippers are better quality then is The headset/microphone itself does not require USB power to work; only the LED lighting does. Order this item it arrive 2 hour before so super fast shipping very easy to install and compact you dont lose the second outlet works great with Alex The BadIt looks like a very cheap plastic shell and the seal between each side looks extremely weak. Its solidly built to meet your needs exactly, and faster than anything else. In US sizes, Ill normally a 2x. The bike hooks are adjustable, but lock in solid with a pin, making it easy to hook in the bike even when you are navigating handlebars etc.