Top features: - Quiet and comfortable design - Powered headphones provide hours of noise-cancelling Quiet and comfortable Living up to their name, these QC25 over-ear Bose headphones are equipped with acoustic noise cancelling technology that eliminates background noise, so that a cleaner audio signal reaches your ear. Even at low volume levels, the QuietComfort 25 Headphones allow you to hear subtle nuances that immerse you in your favourite songs and albums. After all, you want nothing but the best sound when you're listening to music on the move. Because of a snug-fitting design that encompasses your ears, the QC25 headphones passively block out external sounds to keep your enjoyment at a maximum. Leather earcups make them easy to wear all day long. They also offer an adjustable headband that's durably designed and comfortably fits a wide variety of head sizes, and weigh less than 200 g to prevent ear fatigue. Powered headphones Keep a couple of AAA batteries handy to ensure your Bose QC25's can deliver their noise-cancelling sound all day long. They accept standard and rechargeable AAA models. An on/off indicator light lets you know when to turn off the headphones when they're not being used, prolonging battery life. The light also shows when it's time to replace the battery. Providing exceptional audio quality, advanced technology and easy wear-ability, the white Bose QuietComfort 25 Noise-Cancelling Headphones are ideal for travel and use with your Android mobile device.