With the Bose QuietComfort + Case Cover, you can enjoy your favorite songs, even in the noisiest spaces. These earbuds have have high-end noise canceling, so ambient noise is heavily reduced. In the Bose Music app, you personalize the sound reproduction with an equalizer. This way, you can listen to personalized sound. Want to start a conversation with someone? When you take an earbud out of your ear, the music pauses automatically. When you put the earbud back in, the music will start to play again. Thanks to the included protective cover, you protect your charging case from scratches and bumps. Different earbud sizes and stability bands are included. Try them all to find the ideal fit for you. High-end noise canceling The high-end noise canceling of these earbuds greatly reduces ambient noise, and you won't hear much of your surroundings while you listen to music. That way, you can cancel out unwanted sounds, and you won't turn the volume up too high to enjoy to music. Bose CustomTune technology Thanks to the Bose CustomTune technology, noise canceling and audio performance are adjusted to the shape of your ears. When you put the earbuds in your ear, you'll hear a tone that helps measure the acoustics of your ear. So you can enjoy personalized sound and the best possible noise canceling. Aware mode with Bose ActiveSense technology Do you want to hear more of your surroundings, instead of less? Turn on Aware mode to amplify ambient noise. The Bose ActiveSense technology ensures a natural balance between music and ambient noise. This way, you'll still hear your music well, even if there's a lot of ambient noise.