Experience directional bass with the Crusher Wireless Over-Ear Headphones from Skullcandy. The Crushers have been engineered with custom-tuned audio drivers to help give quality audio reproduction for any type of music. For audio with lots of bass, Skullcandy utilizes stereo haptics for directional bass in each ear. No matter the type of audio you like to listen to, you can listen to it all day long thanks to a battery life of up to 40 hours. 40mm Drivers Built-In Rechargeable Battery ....