The Audio-Technica ATH-WS50BK Solid Bass Over-Ear Headphones reproduce rich bass sound using a newly designed double air chamber system and acoustically sealed oval earpads. Newly designed double air chamber system provides rich bass expression. Acoustically sealed oval earpads keep bass sounds from leaking. A smooth, freely adjustable headband slider ensures a comfortable fit. The foldable headphones are easy to store and carry.