Gamma 40 Hz Audio Entrainment Device
Easy to use personal sound device designed to promote Gamma brainwaves. Our 40 Hz Sound Device has been specially designed with a 40 Hz (40 times per second) audio tone and includes:
1x USB charging cord
1x Set of earphones
1x 40 Hz Audio Entrainment Device
Every Gamma 40 Hz Audio Device is calibrated and passes a quality inspection before being shipped.
In Stock - Ships from USA
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