These black Sony headphones are a good companion for those who want sound quality. They are equal parts high-performance and stimulating. These Sony headphones are a great companion for music on-the-go. Sunbathers and hikers, plus others will be attracted by the features and volume of these Sony MDR-EX300 headphones. These in-ear headphones are ultra-light and convenient, which means you are able to bring them with you and wear them to enjoy sweet sounds anywhere. With the ultra-high 105 dB sensitivity featured on these Sony MDR-EX300 headphones, you can enjoy your tunes as loudly as you wish using a range of devices such as smart phones, MP3 players, and digital media players. The convenient canal earbud design of these Sony headphones helps you to take them with you in your purse, pocket, or jacket. You can hear your selected tracks with sonic clarity because these in-ear headphones come with realistic sound quality. Also, these Sony MDR-EX300 headphones have a superb 5 Hz to 24 kHz frequency response, so you can discern crisp treble tones and ultra-low bass notes.