✓High energy Neodymium magnets ✓Speaker diameter – 10 mm ✓L-shape connector for better plugging stability ✓Gold plated 3.5mm jack. ✓Unique ergonomic design earpiece fit for all kind of ears ✓Extra comfort with silicon earcaps ✓Flat sophisticated cable with copper wires for premium sound quality ✓Built-in microphone for calling ✓Metal and ABS for durability ✓20hz-200khz frequency response for crystal clear sound