Breaking all barriers, X20i sets a new standard in headphone acoustics. Powered by a true two-way dual armature design, the high-horsepower KG-926T woofer is mated to a high-resolution KG-125B super tweeter. This results in a palpable sound character and makes X20i the broadest bandwidth in-ear headphone available from Klipsch. Features: - KG-2625 AcuPass Two-Way Driver - KG-926T Balanced Armature Woofer - KG-125B Balanced Armature Super Tweeter - Stainless Steel Construction - Super-Slim Oval Ear Tips - Advanced Three-Button Remote + Mic