Your phone features earSmart™, an intelligent voice processor that delivers a clear voice experience, allowing you to hear and be heard™ innearly any environment. earSmart technology uses the science of human hearing to distinguish sounds, identify your voice and suppresssurrounding noise, for clear conversations just about anywhere.How Does It Work?• The earSmart voice processor in your phone captures your voice and all the sounds around you.• Working like the human ear, it processes and distinguishes these sounds, isolates your voice conversation, and removes background noise - from both endsof a call.• It also automatically equalizes and adjusts voice volume so you can hear and talk naturally, even in the noisiest places.• With earSmart technology, you can talk where you want, and have clear conversations for mobile calls, video chats, even speakerphone calls, withoutworrying about surrounding noise.Open Source SoftwareThis product includes certain free/open source software. The exact terms of the licenses, disclaimers, acknowledgements and notices areavailable on the Samsung's website http://opensource.samsung.com .