Visang R02 is an earphone with equilibration. The high, medium, and low frequency distribution is average. It works well and grabbed a frequency and not to influence another frequency. The sound is up, good clean and fresh. This earphone sound great for the price. Their sound quality easily compares with products costing 2-3 times as much. Isolation and comfort levels are also very good. A budget-oriented version of their upmarket R03 offering. Like its big brother, the R02 offers deep and natural-sounding bass, a warm midrange, and crisp treble due to the 10.7mm dynamic driver. The metal nozzles and a Cu-Ag alloy cable ensure longevity. A uniquely patterned cable sheath provides flexibility and reduces cable contact noise while keeping the cord from tangling and reducing snags. The wide variety of included ear cushions means everyone will be able to find one that sounds, fits, and isolates best. Whether you are an audiophile on a budget or a casual listener, the ViSang R02 will help you enjoy your tunes in a whole new way.