Sleep Machine with 7.83Hz Sleep Aid, Schumann Resonance Generator (0.01Hz-200KHz), Sound Machine for Sleep, Healing Frequency Device for Stress Relief, Relaxation, Meditation & Yoga. 7.83Hz Natural Sleep Aid Machine】Housed in a unique, patent-pending gift box, this Sleep Machine harnesses Earth's natural 7.83Hz frequency to improve sleep quality, reduce stress, and promote relaxation. Drift off faster, achieve deeper rest, and wake up rejuvenated and ready to embrace the day. 0.01Hz-200kHz Frequency Adjustment Enjoy a wide frequency range (0.01Hz-200KHz) for precise control and a personalized experience. Easy-to-use adjustable settings ensure flexibility and convenience, making it perfect for both beginners and advanced users. Discover the Benefits of 7.83Hz The 7.83Hz wave sleep machine promotes stress relief, boosts mood, and enhances yoga and meditation sessions. This natural frequency supports deep relaxation, mental clarity, and overall well-being. 【Sturdy & Energy-Saving