Sony MDR-XB55APR Headphones Wired In-ear Calls/Music Red

12mm neodymium driver units Specially developed 12mm drivers combine a compact, lightweight design with a high sensitivity of 112dB/mW, for powerful sound without distortion at high volumes. Inline remote and mic for hands-free calls Take hands-free calls and switch tracks without ever having to touch your smartphone, thanks to the inline remote and mic. Powered Bass Duct++ for extra deep bass Powered Bass Duct++ technology delivers deep, responsive bass and powerful sub-bass, making it perfect for low-end focused music styles Tangle-free cable The cable has a serrated design to resist snags and tangles, keeping your headphones knot-free. 4 sizes of earbud With a range of 4 earbud sizes, (SS, S, M, and L), you'll be able to customise your fit for comfortable on-the-go listening.