Powered by a pair of AAA batteries, the noise cancellation feature in a pair of stylish Beats Studio headphones amplifies the music as it blocks out noise, giving you consistently powerful & intense sound. Super plush & covered with ultra-soft breathable materials, you&8217;ll be cool & comfortable even during marathon listening sessions. The Beats by Dr. Dre logo on the side also acts as a mute button when you press it. No need to take them off to talk. Designers of Beats Studio over-ear headphones conducted a series of ergonomic studies to find the perfect lightweight, foldable headphone that always delivers a comfortable fit.