The Tangzu Wu HeyDay IEMs boast an upgraded sound experience housed in a stylish design. Taking inspiration from Chinese history, these earphones come in a metal gray finish to honor the Tang dynasty. The star of the show is the improved 14.5mm planar driver, tuned for a more balanced and spacious sound with clear bass and highs. The earphones are encased in a precision-crafted aluminum shell for a touch of luxury and a comfortable, secure fit. What You Get Tangzu x HBB Wu Heyday Edition IEM (14.5mm Planar) Detachable high-purity oxygen-free silver-plated copper cable Interchangeable 3.5mm single ended, 2.5mm balanced, and 4.4mm balanced connectors for universal compatibility 6 pairs of silicone tips of a variety of sizes (S/M/L) + foam tips IEM carrying case Specs Connectivity: 2pin Driver Configuration: 1Planar Impedance: 16ohm Sensitivity: 100dB