plus+:best use for messenger chatting, audio playback.simple usagestylish looksminus-:Sound breaksdesign is a draw back, the straight body and the mic hole directly at the bottom , makes the mic point away from your mouth , so the other end listens only to a small part of your vocal energy which gets reflected from surroundings, ans as you can imagine if you speak out in a open area, you are actually transmitting less!the ear piece is not ergonomically designed, it is to stiff and only makes your ear hole large!! and swell.over time, the whole set up gets loosened and eventually will start falling off which ofcourse makes you do some circus feats in crowd!