The Skullcandy Crusher Active Noise Cancellation (ANC) over the ear Bluetooth Headphones feature over twenty four hours of playback time! When the Crusher ANC Bluetooth Headphones are not in use, they can be charged in 10 minutes to provide three hours of playback time. Active Noise Cancellation can be turned on with a press of a button to block out surrounding sounds. Besides controlling the Active Noise Cancellation the Crusher Bluetooth Headphones include built in music controls to control to volume, track, activate voice assistance (Siri/Hey Google), and answer/reject calls. The Crusher ANC Bluetooth Headphones feature new patented drivers that make you feel the bass. The bass can be easily adjusted by sliding the bass adjuster with the adjustable sensory bass control. Through the free Skullcandy App you can create your only personal sound profile to personalize your audio preferences. Included is a premium protective traveling case, USB Type C Charging Cable, & a 3.5mm Aux Cable.