Features:Material: ABS3 power supply methods: AAA battery(Not included) , USB, transformer8 kinds of massage intensityCan adjust the sizeAdjustable acupuncture pointsSoft latex, targeted massageProduct size: 27*20*22cmPower Mode: Computer USB Interface Connection, Transformer ConnectionDescription:1.Massage on many points on the head, and each acupoint is closely related to certain organs or physical conditions.2. The front end is equipped with elastic device fixing plate, according to different size of the head type, targeted massage.3.This easy-to-use brain massager gives you a comfortable massage and enjoyment of health.4.Back-end design with slow release, easy to remove massage,acupuncture points, with senior medical latex soft5.Great for office or home, or traveling, can massage at any time and relieve fatigue aches, headache,work fatigue.6.Also help you improve sleep, improve memory, relieve brain fatigue and quality of work provided significant results.7.A gift for wokers, students or your loved ones.Instructions:1. Put the massager directly on the head. {Acupuncture point massage is more in front, and the elastic end is adjusted on the back of the head, that is, the hood is facing forward, and the hood is not on the back of the head.2. Toggle the switch to adjust the massage force (1-8 types of force can be adjusted). According to their needs, at any time to turn off the power, after use, directly remove the head massager can be.Note:This product must be used by people over 12 years of age.includes:1x Massager1x USB connector1x Power Adapter (100 to 240)V"