Smartphone-like responsiveness with instant on Only ASUS notebooks offer you true 2-second instant on resume from sleep or hibernate, cutting out long reboot times and putting you back to work or enjoyment right where you left off. Thanks to ASUS Super Hybrid Engine II technology, you also get up to 11 days of standby, with auto data backup should battery charge drop to 5% or less. SonicMaster Lite audio amazement Exclusive ASUS sound enhancement turns the new X Series into highly capable multimedia notebooks, with the best sound in their class: more power, wider range, and improved clarity combine to offer a more satisfying multimedia experience. Stay comfortable with IceCool technology Exclusive ASUS engineering has created a unique internal layout that keeps heat away from palm rests and from users. Always below body temperature, palm rests feel cool to the touch, and are therefore more comfortable to use even during long sessions