Sometimes we all need a bit of peace and quiet. If you use your headphones every day for commuting or while in the office, you may want something that will do an effective job at blocking out background noises. While in the past you needed large over-ears to get good active noise cancelling (ANC), you can now get impressive noise cancelling even in small and portable in-ears or earbuds. With some in-ear headphones, you can still achieve great isolation without an ANC feature due to them physically blocking your ear canals.