Measurements by Hangout.Audio The 7HZ Timeless features a 14.2mm planar driver with an ultra-thin diaphragm, providing fast response, excellent dynamic range, and superior frequency characteristics. Crafted from aviation-grade aluminum with CNC machining and a hard oxidation treatment, the durable and wear-resistant shells are designed like an infinity pool for a timeless sound. The custom high-quality cable, made from single crystal copper and silver-plated single crystal copper with a silver foil outer layer, is detachable for easy upgrades. Each lightweight earbud weighs only 5 grams and offers ergonomic comfort for extended wear. Equipped with a double-sided array of N52 magnets, the Timeless delivers powerful, dynamic, and transparent sound quality. What You Get 7Hz Timeless IEM (14.2mm Planar) Detachable high-purity oxygen-free silver-plated copper cable 11 pairs of silicone tips of a variety of sizes (S/M/L) Aluminium IEM carrying case Specs Connectivity: MMCX Driver Configuration: 1 Planar Impedance: 14.8ohm Sensitivity: 104db/Vrms