KZ AS16 HIFI earphone equipped 8 BA units on each side,which is flagship-level configuration.The combination of 8 BA covers the complete sound range of low, medium and high frequencies, and the overall frequency response range is as high as 20Hz-40000Hz, bringing shocking auditory effects. better sound preformance:kinboofi kz as16 adopt golden acoustic solution,which can bring HIFI to your ears. The hardware carries technology, and the tuning gives soul.We believe that a sound that is widely recognized by users is a good sound. The cornerstone of AS16's good reputation will finally bring you a new presentation of AS16 PRO in ear monitor.