Encased within each sleek, brushed shell is a high performance, precision-tuned 9 mm neodymium driver. Paired with an optimized inner acoustics chamber in each shell, these in-ear monitors produce a sound signature that packs a strong bass while maintaining crystal clear mids and highs. Supreme quality sound would be wasted if drowned out by stray, ambient noises. That is why the Razer Hammerhead Pro comes equipped with interchangeable ear-tips in 3 sizes, along with an optional pair of bi-flanges to provide superior sound isolation and bass response. This exceptional audio solution also features an in-line omnidirectional microphone with one-touch phonecall control for crystal-clear, convenient voice communication with mobile devices on the go. Topped off with a compact carrying case for portability, the Razer Hammerhead Pro epitomizes the way in-ear monitors should be experienced - with style, comfort and aural fidelity.