The Westone UM Pro20 is a professional tool packed with features that will help you bring down the house every time you get on stage. The dual driver balanced armature design has the range and raw output for any stage condition. Individually hand-crafted in the USA, the UM Pro20 is comfortable and secure with "Up and Over" cable routing that helps prevent micro phonics and keeps your earphone securely in place. A true dual-driver earphone designed to expand your audio horizons, the UM Pro20 uses separate bass and high frequency balanced armature drivers to enhance your listening experience with incredible detail and dynamics. Handcrafted in Colorado Springs for musicians, the Westone UM Pro20 delivers extraordinary detail and clarity in a compact ergonomic package. Sound-isolating Star and True-Fit tips, in multiple sizes, give a personalized fit. The UM Pro20 is the perfect fusion of high performance and luxury comfort.