Califone’s Active Noise Canceling Headphones block out surrounding noise and allow you to focus. These durable headphones make it easier to hear high frequency notes and provide clearer sound without distortion. Comes with a 3 1/2 millimeter plug and quarter-inch adapter. The cushioned headband adjusts to fit most adults and features comfortable, replaceable leatherette ear cushions. Store and protect your headphones inside the included hard storage case.