The KZ AS24 Pro in-Ear Monitor Headphone is a high-performance IEM designed for musicians and audio professionals. With 24BA drivers and a frequency range of 20Hz - 40kHz, this portable headphone delivers clear and accurate sound reproduction. It also features a built-in mic for easy hands-free use. Made by the reputable brand KZ in China, this in-ear monitor is perfect for on-the-go monitoring and improving your audio experience.