1.[Detachable 2pin IEM Cable]The kz zsn pro has an upgraded cable with slot protection design. It can effectively protect the pins to avoid breakage and extend the life. With a 0.75mm 2Pin gold-plated interface and detachable, replaceable cables design, cable replacement or upgrade is easy. You can change it to your preferred cable choices, ing more fun and options. 2.[Professional Sound Quality]KZ zsn pro features a customized balanced armature and 10mm dynamic driver, providing excellent sound. It has rich low frequency and details. The sound signature is balanced, coherent from top to bottom, with good deep solid bass, clear mid range, and beautiful high frequencies. It accurately analyzes every detail, achieving the perfect balance of solid bass, soft midrange, and clear treble, ing an immersive sound experience. 3.[Exquisite craftsmanship & Eye-catching Look Design]The cover is made of high quality Zinc Alloy, while the cavity is made of imported resin and Aluminum alloy vocal cavity. The combination of different materials and a wide range of color options result in a modern, eye-catching, and fashionable earphone. It is not only a pair of in ear headphones but also looks like an art. 4.[Comfortable Ergonomic Design]The design of these in ear earbuds is based on research on ear canal big data, fitting the natural curves of your ear for optimal comfort and stability, with no fatigue over long periods of use. It brings you a top wearing and listening experience, allowing you to enjoy music during activities like running, cycling, walking outdoors, or fitness in the gym.