Skullcandy S6CRW-K591 Foldable Over-the-ear Headphones, Wireless, Bluetooth, Bass Function, Microphone, 40-hour Battery Life, Coral Black No other headphones can give you the bass you can feel. If you want to have an audio experience like at a live concert or a movie at the cinema, try Skullcandy Crusher Wireless. 40-HOUR BATTERY LIFE40 hours of battery life give you the comfort and freedom of several days. HAPTIC BASSThe proprietary technology of the Skullcandy Crusher Wireless headphones gives you the possibility of adjusting the bass or volume level, along with sound isolation.