Kz castor pro: IEM is an upgraded version of

KZ Castor Pro IEM is an upgraded version of KZ Castor which is designed with the needs of professional musicians in mind, the KZ Castor Pro combines advanced electronic crossover technology with a precision four-level tuning filter. KZ Castor Wired IEM Earphone with Mic, 10mm Dual Magnetic + 8mm Dynamic Driver, Harman Target with Improved Bass in Ear Monitor, 4 Tuning Switches, 2Pin Detachable Cable KZ Castor Pro X features a 4-level tuning switch, letting you adjust bass, mids, and treble for a personalized sound. Perfect for different genres and listening styles. KZ Castor Pro IEM with HD Mic, Dual 10mm Dynamic Driver, Harman Target Improved Bass for Hi-Res Audio Quality, 4 Tuning Switch, Oxygen Free Copper Flat Cable, 0.78mm 2Pin & 3.5mm Plug Compatible