With Virtual 7.1 channel, It delivers a detailed sound field to experience a real game The ear cushions deliver great comforts even during long time of wearing Self-adjusting suspension headband automatically creates a personalized fit High Quality reproduction of sound by 50mm Dynamic driver unit Key function: Volume control, LED light , Microphone switch Specifications: Dimension: 217(L)X177(W)X100(H) Speaker diameter: ø50MM Sensitivity: 120±3dB S.P.L at 1KHz Frequency response: 20-20000Hz