Samsung I827 Cell Phone User Manual

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 ends of 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,
without worrying about surrounding noise.