LETSHUOER Mystic 8 BA Drivers wired IEM Hifi earphonesLETSHUOER Mystic 8 In Ear Monitors Key Features: Eight Balanced Armature Drivers with Low Pass Filtering Module: Featuring four Knowles and four Sonion balanced armature drivers for exceptional tonal density and detail, alongside a low pass filter to enhance bass performance. Three Way Electronic Crossover with Four Acoustic Tubes: Ensures precision, smoothness, and consistency in sound, minimizing phase distortion for a seamless listening experience.