1.The streamlined massage head is specially designed for the neck. The streamlined design conforms to the ergonomic theory and transmits energy to every inch of the neck. 2.The massage head's 45-degree warm skin rejuvenation is combined with three color sound wave modes of low, middle, and high, and blue/green / red color massage. Promote blood circulation, stimulate acupuncture points on the face and neck, dredge meridians, improve circulation and promote metabolism, promote the discharge of long-standing waste toxic substances, slow down the aging of epidermal cells, reduce the appearance of necklines, reduce puffiness, relax shoulders and necks, acupoint physical therapy, Quickly eliminate fatigue and restore physical fitness. 3.The three sonic vibration modes are low speed (blue light) / medium speed (green light) / high speed (red light). Touch the switch to turn on, every time you press to switch the mode, in the order from low to high, long-press the switch to turn off. It has a mode memory function and a 60-second intimate reminder to easily adjust the massage time. 4.USB cable charging is safe and convenient. Mini-portable, easy to use anytime, anywhere. 5.Newly introduced bionics design concept, using dolphin shape design, exquisite and novel.