With A Range Of 0.01Hz To 20Khz, This Custom Frequency Generator V2 Allows You To Easily Adjust The Frequency To Meet Your Personal Needs, Whether For Better Sleep, Focus, Or Relaxation Tap Into The Earth'S Natural Frequency To Improve Your Sleep Quality. The 7.83Hz Wave Promotes Relaxation, Reduces Stress, And Helps You Fall Asleep Faster, Leaving You Feeling Refreshed And Ready For The Day The 7.83Hz Frequency Offers Multiple Benefits, Including Stress Relief, Improved Mood, And Enhanced Meditation Or Yoga Sessions. Enjoy Relaxation, Mental Clarity, And Overall Well-Being Made From Abs Material, This Device Is And -Efficient, Using Less Than 1W Of Power. It Includes Both Dc And Usb Power Options And Is Easy To Integrate Into Any Space As With Any Sound Or Music Therapy, You Can Feel Confident In Your Purchase And Enjoy The Many Benefits Of Resonance, Manufacturer: Akfldms