Westone UM Pro 20 Dual Driver Monitor Earphones - Clear - New Original Dual-driver UM Pro In-ear Monitors! Westone UM Pro 20 in-ear monitors give you amazing detail and clarity! The economical UM Pro 20s sport two balanced-armature drivers that are smaller and more efficient than traditional dynamic drivers, delivering superior performance in a compact, lightweight package. To ensure a comfortable, personalized fit, the UM Pro 20s ship with sound-isolating Star and True-Fit tips in multiple sizes. Westone's EPIC replaceable cable with up and over cable routing helps eliminate microphonics and keeps your earphones securely in place. Take the stage with Westone UM Pro 20 in-ear monitors. Westone UM Pro 20 Features at a Glance: Dual-driver in-ear monitors with passive crossover Superior performance in a compact, lightweight package Balanced-armature drivers are smaller and more efficient than traditional dynamic drivers Sound-isolating Star and True-Fit tips in multiple sizes ensure a comfortable, personalized fit EPIC replaceable cable with up and over routing helps prevent microphonics and keeps 'phones secure