QuietComfort&reg; 25 headphones are re-engineered with higher-quality materials and finishes. They're lightweight, and ear cups rotate even more for a better fit. The headband sits closer to your head, with luxurious suede-like material underneath for extra comfort. If the AAA battery runs out, you can still enjoy music without noise reduction. And the ear cups pivot to fit in a compact case that&rsquo;s easy to carry.These advanced, around-ear noise cancelling headphones are designed for Samsung and Android devices.GeneralWeight:195 g<br> <br> <img src="http://bosscreat.esellersimg.co.kr/DETAIL/detail_global.jpg" border=0>