FiiO FD3 PRO Earphones in-Ear Earbuds High Resolution 1DD Deep Bass Detachable MMCX Connector with 2.5/3.5/4.4mm Plugs DLC BlackColor: FD3 PRO black Crafted from high quality materials These earbuds deliver superior audio quality and a comfortable fit The detachable MMCX connector allows you to easily replace the cable or upgrade to a higher end cable for even better sound quality The compact design makes them easy to take with you on the go, while the included carrying case ensures that they are always protected Item Number: FiiO FD3 Pro Dimensions: 7. 17 x 4. 96 x 2. 17