Stay focused on the sounds you want to hear. Let the Marshall Monitor II ANC Signature Headphones immerse you in your music. These over-ear headphones use active noise-canceling technology to block out unnecessary sound. And these Marshall headphones deliver the music you do want to hear through their 40-millimeter dynamic drivers. Additionally, these custom-tuned drivers match your preferred sound profile for the best listening experience. Moreover, you can walk around your busy city all day long with these Monitor II headphones thanks to their 45-hour battery life. While that’s when you’re not using ANC, you still get 30 hours of playtime when you enable active noise canceling. Finally, they continuously measure ambient noise to eliminate it from your audio, and these headphones come in a sleek black color.