Neo Neurophone By Child Prodigy Patrick Flanagan
Patrick Flanagan's Neurophone works the same way binural beats work to help synchornise the brain waves of the right and left sides of your brain. What is special about the Neurophone is that it send these frequencies through your body via sonar waves.
Just place the Neurophone strap along your forehead and you hear the frequencies resonating in a sonar receptor in your brain.
This device can be used to put your mind in a calm meditative state or you can choose to listen to frequenices that increase awareness and concentration.