Flare Audio R2A Sound Isolating In-Ear Aluminum Earphones with High Definition & Distortion Free Sound (Black) HIGH PERFORMANCE: Critically acclaimed by top audio engineers and professional audio reviewers EXCEPTIONAL CLARITY: Pressure-balanced micro 5mm neodymium driver with an innovative, minimalist design offering a unique, distortion free, pure sound clarity PRECISION MACHINED: Constructed using a robotic precision lathe from one solid bar of aerospace grade aluminum, with an anodized finish for long-lasting durability SOUND ISOLATION: Incredibly compact with solid metal construction providing a high degree of sound isolation USER REPLACEABLE PARTS: Cable and driver assembly is user-replaceable (a first for an earphone product); comes with professional grade Comply Tx-200 Isolation memory foam earbuds (medium), and 1-year manufacturer warranty