We don't need to convince you of the merits of a good pair of noise-canceling headphones. But, most of them have their drawbacks — namely, bulky design and a sometimes-undesirable isolation from your surroundings. The Bose QuietComfort 20 Noise Canceling Headphones ($300) fit inside your ear, taking up nearly no space at all, and an aware mode lets you tune into the world around you while still listening to music. The noise-canceling tech rivals most over-ear headphones, while the sound is everything you expect from Bose. A combination mic and remote in the cord lets you control your device or make a call.