Slimwe Ultrasonic Body Shape Sleeping Instrument, Promote Sleep/Decompression/Relieving Headache Benefits of using Slimwe Ultrasonic Body Shape Sleeping: Resolves Lymphatic Problems Treats Swollen Limbs Promotes Better Blood Circulation and Lymphatic Drainage Helps Burn Fat and Improve Weight Loss Makes Use of Highly Effective Ultrasonic Therapy Improves Overall Health and Quality of Life Specification: Soundwaves Frequency: 3~60Hz Rated Power: USB Charging Charging time: about 5 hours Fully charged for use: a week Style: Silicone model - More comfortable to the touch, Handheld model - More in line with the hand grip design Package Include: 1 x Slimwe Ultrasonic Body Shape Sleeping instrument Warm Tip: 1.Due to the lighting effects and shooting angles, the color of the item and that shown in the picture might have a nuance. 2. If you are not satisfied with the received goods or the received goods are damaged, please contact us in time before applying for return, we will answer your questions within 24 hours.