MX PRO in-ear monitors blur the line between universal and custom in-ears with a fully modular design that allows all parts, customizations, and accessories to be changed or upgraded independently. The MX4 PRO utilizes a four-driver hybrid setup with a 10mm dynamic subwoofer and three balanced armatures to deliver ultimate high-fidelity reference sound for stage and studio, with balanced sound tuning and quad-driver resolution. Used by professionals globally, the MX PRO series in-ear monitors come in 4 different models, each with their own unique sound tuning for different musician needs.