While exploring the internet i came upon this device called a Brain Machine that supposedly "produces sound and light pulses which help people sleep, wake up, meditate, and experience whatever state of consciousness the machine is programmed for." I'm assuming the sound is binarial beats. I'm considering buying it but I want a second opinion. Its a very simple device but interesting.
http://www.makershed.com/ProductDeta...=MSBM&CartID=1
