Introducing the all-new FiiO FX15 a multi-driver hybrid set of IEMs with a six-driver hybrid driver setup on each side. The pair houses a combination of three types of drivers featuring a 10mm DLC Dynamic driver, a Knowles premium Balanced Armature Driver, and four units of Sonion EST drivers. The FiiO FX15 is the first product from FiiO to feature EST implementation. It has been designed with utmost precision and great professionalism to provide high-end level sound quality with a comfortable wearing experience. With professional tuning adjustments, FiiO FX15 delivers its users great sound resolution and the ultimate music listening experience. FiiO’s First Electrostatic Driver Implementation FiiO FX15 is the FiiO’s first-ever implementation of highly-resolving electrostatic drivers in IEMs. The brand has cooperated with SONION one of the leading brands in the industry to provide high-quality and premium performance electrostatic driver units. With the help of four EST drivers on each side, FiiO FX15 delivers an immensely detailed high-frequency band. EST Drivers with a Switch EST Drivers are added to improve the high-frequency extension and provide the users with an impressive resolution in the high-frequency region. The FX15 features a switch that allows the users to easily turn the EST drivers on or off. FiiO’s Patented S.Turbo Acoustic Design In order to enhance the lower-frequency response produced by the dynamic driver unit, FiiO has equipped the pair with its patented S.Turbo acoustic design architecture. It incorporates an ultra-thin and long acoustic tube that greatly improves the bass response on the FX15. Professional Tuning Adjustments FiiO FX15 is a true high-resolution in-ear monitor that promises high-end sound with its exquisite driver setup. The pair is tuned to deliver a balanced sound with strong lower-end response, lovely midrange, and smooth yet detailed treble response. Exquisite Looks With “Sound and Shape” Design Theme FiiO FX15 IEMs feature an eye-catching design on the ear shells. The design of the pair is inspired by the “Sound and Shape” design theme, The pair looks beautiful with its designer face covers. Highly Precise 3D-Printed Ear Shells FiiO has partnered with the top brand in the industry using their exquisite craftsmanship to design the beautiful FX15. The pair is made up of high-quality imported resin material crafted using high-precision DLP 3D-Printing technology. The shells have lightweight designs promising great comfort to their listeners. High-Purity Stock Cable To ensure the FiiO FX15 delivers top-level sound performance, FiiO bundles the pair with its high-purity 224-core high-purity sterling silver material cable. It has an interchangeable termination plug system with 3.5mm and 4.4mm plugs included in the package. The high-purity wire core enables smooth signal transmission with low internal resistance to the sound signal.