Price Match Guarantee Sennheiser IE 900 Audiophile In-Ear Monitors The new IE 900 from Sennheiser sets a new benchmark in portable audio fidelity through technical innovation (X3R technology), meticulous attention to detail, and an uncompromising demand for perfection. Every aspect of the IE 900 has been engineered to work in harmony to achieve the desired acoustic tuning and to reduce resonances and masking effects. Its acoustic design ensures brilliant, natural high-end sound reproduction and reveals even the finest details in the music. Product Highlights: Innovative X3R technology, unique to the IE 900, combines the German-made 7mm transducer with specially developed membrane foil, triple-chamber absorber and acoustic vortex for an intense listening experience Larger-than-life sound from 7mm TrueResponse Transducer, crafted in Germany specifically for in-ear listening using the entire frequency spectrum for critical hearing of all elements of the source Unique triple-chamber absorb