Introducing the Sony MDR-XB55AP In-Ear Extra Bass Headphones: 12mm neodymium driver units deliver powerful sound. Our Powered Bass Duct technology delivers deep, responsive bass and powerful sub-bass. With four different earbud tip sizes included, and a tangle-free cable, the MDR-XB55AP are completely comfortable to wear too! 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. 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. 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. Headphone Features1.2m cord length. Y-shape cord. Connection: wired. With a 3.5mm jack connection. 3.5mm jack . 12mm driver. In-line controls. Carry case. Compatible with universal smartphones. In the box: Carring Pouch, Earbuds. General InformationModel number: MDRXB55APB. CE7. Manufacturer’s 1 year guarantee. EAN: 4548736130432.