Crusher Tech: What is it? Use the sensory bass slider to enhance your bass, or go all skull crushing! Crusher Tech improves the sound quality of your computer, iPhone, or Android device. Custom Sound: The Crusher creates sound just for YOU after analyzing your hearing. After a brief test, the Crusher will be adjusted for you. We have developed our most comfortable headphones and added a new degree of comfort to the Crusher line. Epic Noise Cancelling: The Crusher ANC 2 actively mutes the outside world by using four microphones to listen to all outside noise. Additionally, you can change the noise cancellation level between hearing, mute, and between. Skullcandy's largest battery, which lasts up to 50 hours between charges, and if