Razer Adaro Stereos - Analog Headphones Packing high performance, custom-tuned 40mm neodymium magnet drivers, the Razer Adaro Stereos deliver crisp, natural sounding acoustics for an amazing audio experience. The Razer Adaro Stereos are meant for you to take them wherever you go. Their construction is sleek and compact, allowing for easy transportation, yet incredibly robust for endless hours of use. Custom-tuned 40mm dynamic drivers for uncompromising audio Connectivity Technology: Wired