Because they are Hi-Res, they provide perfect sound quality. Workshop workmanship, which includes, for example, titanium diaphragms on the speakers or ergonomic in-line control on the cable, is the reason why you can barely store them. They play so well and endure so much that their show has no end. They have a cable, so the only battery you can rely on is the battery in your mobile, tablet or laptop. The omnidirectional condenser microphone will record your every word, even if there is loud noise around.