This sleep aid is packaged in an exclusive gift box and uses the Earth's inherent 7.83Hz frequency to improve sleep quality, relieve stress and promote relaxation.Go to bed faster, enjoy deep rest, wake up with refreshed energy and full of energy. Having a wide frequency range, it can achieve accurate and customized experience.The user-friendly adjustable settings provide versatility and ease of use, making them ideal for both new and experienced users. 7.83Hz Schuman waves can effectively relieve stress, enhance mood and improve yoga and meditation practices.This natural frequency promotes deep relaxation, spiritual clarity and improves happiness. This resonance generator is made of ABS material and powers less than 1 watt and offers DC 5.5 x 2.1 and USB power options.It supports a variety of waveform outputs, with a compact size of 5.51 x 5.91 inches and weighs only 0.4 pounds. Explore other frequency advantages with effective sinusoidal therapy frequency list. Note:Before using sound or music therapy, please consult a professional to it is suitable for and personal needs. Colour:As Shown Material:Metal+Plastic Package Contents: 1set * frequency generator Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.