A mind controller is disclosed. The mind controller can induce a user's brain waves into an alpha wave state or a theta wave state by sensing and analyzing human brain waves and then transmitting a mind control audio message suitable for the analyzed human brain waves to the user, so that the user can improve mental concentration power or memory for himself/herself. The mind controller for activating brain waves generated from the user's brain, includes: an EEG(Electroencephalogram) sensor for sensing frequency band corresponding to alpha waves and theta waves from the brain waves generated from the user's brain; an MCU(Memory Control Unit) for analyzing whether the brain waves sensed by the EEG sensor are alpha waves or theta waves through a built-in program of a brain wave analysis program pack and controlling output of a message, which corresponds to the alpha waves or the theta waves, out of mind control audio messages of an MP3 pack; an audio decoder for demodulating signal converted into data in the MP3 pack by control signal output from the MCU; a D/A converter for receiving signal provided from the audio decoder and converting the signal into analog audio signal; and audio output means for converting and providing the analog audio signal into sound.
Mind controller