The output level here is significantly higher than on other headphones I've tried, and no volume control is offered on the Dr Dre Beats themselves. Monster recommends that iPod users activating the Sound Check feature to standardize the volume on all tracks and prevent unpleasant--possibly painful--surprises. Despite the ample power beats by dre Solo Headphones, battery life was generous monster Lady Gaga headphones, as I made it through half my testing on the original pair of batteries included in the package. They only died after I tucked the Beats By Dr Dre into my bag without switching them off.

The left earcup's outer cover comes off to reveal the battery compartment monster studio headphones, which holds two AAA batteries (included) beats by Dre, while the right earcup houses the power switch and mute button. A tiny red indicator light on the power switch shows you when the Dr Dre Earphones are active, turning amber when the batteries are low. These Beats By Dr Dre in ear look and sound very good, and are best suited to casual use like walking around town or listening at your desk. Commuters and airplane travelers should stick with Bose's QuietComfort 2 for its superior noise cancellation, or better yet in-ear models like Shure's SE series, which block noise like earplugs. Serious audiophiles will definitely not dig the hiss and inability to turn off cancellation.

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