The ASUS All-in-One PC ET2400 series features the exclusive SonicMaster technology for pure audio reproduction. The ET2400 series reproduces richer and more distinct vocals at a wider frequency range, while bass enhancement at the lower end of the audio range delivers richer and deeper bass. So whether you're watching movies or listening to music, it delivers the appropriate aural experience whether you're watching movies, listening to music or playing games. Don't Compromize - Customize your new ET2400 - at Portable One today!!!