Healthy Brain Wave Auxiliary Sleep Instrument,therapy use, Enable people to be relax,treat insomnia,tired,worried,psychosis.. Brain Wave Auxiliary Sleep ... depth of relaxation with θ wave signal .Functions: guide users to sleep ( example: insomnia ).6).Precedure-6: 34 minutes of “ ... entries of boos type earphone, eight pairs of glasses. Healthy Brain Wave Auxiliary Sleep Instrument / Machine(BW308)