I have came to know about binaural beats. please can anyone explain me in brief about this phenomenon and its benefits.

This is a brain: sync technique used to mimic the effects of deep meditation. In one ear is piped a frequency, say 200 cps (cycles per second). In the other ear is piped a slightly different frequency, say 205 cps. Most of what goes in one ear is primarily heard on the opposite side of the brain. The two halves of the brain cancel out all but the difference--five cps. Brain sync starts happening at 5 cps