REAL 5.1 SURROUND SOUND - with three driver units per earcups. PREMIUM INBUILT MULTI-CHANNEL SOUND CARD - for rich, interference-free audio. SMARTPHONE TO HEADSET BLUETOOTH PAIRING - let's you handle calls on the fly. FULLY-EQUIPPED DESKTOP REMOTE - total audio control at your fingertips. SUPREME COMFORT: ULTRA-LIGHT DESIGN - suitable for lengthy gaming sessions.