Exclusive ASUS engineering has created a unique internal layout that keeps heat away from palm rests & from users. Always below body temperature, palm rests feel cool to the touch, & are therefore more comfortable to use even during long sessions. Only ASUS notebooks offer you true 2-second instant on resume from sleep or hibernate, cutting out long reboot times & 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 14 days of standby, with auto data backup should battery charge drop to 5% or less. 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, & enhanced clarity combine to offer a more satisfying multimedia experience.