SKULLCANDY Crusher 540 Active HeadsetSKULLCANDY Crusher 540 Active Headset PATENTED MULTI SENSORY CRUSHER BASS TECHNOLOGY. Crusher Bass is the closest thing to experiencing the show live. Featuring two full range 40mm audio drivers plus additional dual bass drivers, your music and movies will come alive with a sound experience you can actually feel. UP TO 40 HOURS BATTERY + RAPID CHARGE. Stayed locked into your workout with up to 40 hours of battery life. With Rapid Charge, just 10