A superb bass response takes the forefront in Audio-Technica's ATH-CKS1000 Solid Bass In-ear Headphones. Audio-Technica's innovative Double Air Chamber System extends bass response without compromising mid- and high-frequency content. The two-position post adjusts the earpieces for better fit and sound isolation, while a uniquely developed 13 mm diaphragm results in more impactful audio reproduction. The headphones come equipped with two 2.6 ft. (0.8 m) extension cables, one with an inline mic, playback and volume controls for smartphones and other compatible devices. A carrying pouch and ear tips (XS/S/M/L) are also included.