The Mackie MP-120 are single dynamic driver in-ear headphones designed to provide enhanced sound isolation and full-range frequency reproduction for musicians, vocalists, and audio engineers in studio recording sessions and live stage applications. The high-performance single dynamic driver in each headphone yields a frequency response of 20 Hz to 20 kHz with an emphasis on balance across the frequency spectrum. The headphones feature a low-profile design utilizing molded enclosures for an ergonomic fit and up to 40 dB of noise isolation. MMCX connectors allow the shielded braided cable to be detached for easy storage or replacement. Accessories supplied with the MP-120 include foam, silicone, and double-flange eartips in multiple sizes, a gold-plated 3.5mm to 1/4" adapter, and a molded hard carry case.