Beats by Dre Studio 2.0 Headband Headphones red Wired FastRedesigned and reimagined, Beats by Dre Beats Studio 2.0 Over-the-Ear Headphones are lighter, stronger, more comfortable and still deliver that fantastic sound that makes them the leader in headphones. With Beats Acoustic Engine™ the listening experience is more intimate, personal and feels more real; pulling you into the world of Beats Studio sound. You actually can adjust the level of noise cancellation so you can go from having your finger on the world around you to complete immersion. The 20 hour rechargeable battery can be charged with a micro USB so you last longer and you've got the convenience of being able to charge on the go. There are so many features built into Beats by Dre, it's no wonder that they're the favorites of so many.Audio Headset Features: Detachable Cable, On/Off Switch, Active Noise Canceling, Foldable Design, Adjustable HeadbandCalling Features: Noise Reduction, Automatic Volume Control, Battery Level IndicatorModel Compatibility: iPod Touch 2nd Generation, Nintendo DS, Nintendo 3DS, PlayStation Portable Go (PSPgo), iPod Nano 4th Generation, PlayStation Portable (PSP)Sound Enhancements: Noise CancellingFrequency Response: 10Hz-20kHzMaximum Operating Range: Up to 5'Ear Cushion Material: LeatheretteIncludes: Adapter, Anti-Microbial Cleaning Cloth, Owner's Manual, Batteries, Carrying CaseNot Included: iPod