ATH-WS55 (Black) Portable Headphones with Multi-layered Hybrid Housing design reduces unwanted vibration, Dual Air Chamber System provides rich bass, Acoustically sealed oval earpads deliver powerful bass response, Smooth, freely adjustable headband for a perfect fit and 1.2m cord with right-angle plug connects easily to digital audio players. Foldable design for convenient storage and portability. The ATH-WS55 Solid Bass headphones deliver incredibly full and textured bass, along with the astonishing clarity and fidelity for which Audio-Technica is renowned. Audio-Technica"s sophisticated driver technology and superior components deliver exceptional power handling, maintaining clarity of sound throughout their extended range. The headphones feature 40 mm drivers for powerful sound and efficient signal transfer. Solid Bass System with new double air chamber reproduces richer and deeper bassAcoustically sealed oval earpads help prevent sound leakageSmooth, easily adjustable headband slider ensures a comfortable fit40 mm drivers reproduce powerful soundFoldable headphones are easy to store and carryAvailable in black (ATH-WS55BK) and red/black (ATH-WS55BRD)