Monster T1 Studio High-Definition Surround Sound Headphones Over-Ear Headphones-Multilingual (Discontinued by Manufacturer) Advanced studio driver design for ultra precision surround sound slarity. Extra large over ear drivers for deep bass and low end surround sound effects. 64 Embedded Tron legacy LED light drivers for animated lighting effects. Passive noise Isolation technology. Monster headphone cable with Quadripole twisted pair construction for balanced sound and clarity.