Audio-Technica ATH-CKS550X BK SOLID BASS In-Ear Earphones, Wired, Deep Bass, High-Resolution Audio Compatible, Black

φ9.8mm SOLID BASS HD driver with excellent transient response reproduces crisp, deep bass. Large-diameter sound guide tube improves sound transmission efficiency, supporting high-resolution audio sources. Compact body provides excellent sealing and comfortable fit. Closed-back design reduces sound leakage. Includes a pouch for storing the earphones and four sizes of earpieces.