1、Three mode and nine gear intensity, you can choose the mode and intensity according to your own needs. 2、Sleep Mode: Low-frequency pulses help to relieve tension and stress, make you fall asleep with peace. 3、Pressure Relief Mode: Relax your mood and relieve the pressure of life and work. 4、Soothing Mode: Stimulate the brain to produce endorphins, soothing headache and discomfort. 5、​Adopts physical therapy, avoid drug dependence and side effects.​ Features: Three mode and nine gear intensity, you can choose the mode and intensity according to your own needs. Sleep Mode: Low-frequency pulses help to relieve tension and stress, make you fall asleep with peace. Pressure Relief Mode: Relax your mood and relieve the pressure of life and work. Soothing Mode: Stimulate the brain to produce endorphins, soothing headache and discomfort. Adopts physical therapy, avoid drug dependence and side effects. High elastic head band, so you can adjust the size and comfortable to wear. Light weight and portable, just 15 minutes can relieve headaches and improve sleep. Specification: Condition: 100% Brand New Material: ABS Three Mode: Sleep Mode, Pressure Relief Mode, Soothing Mode Full power usage time: about 20 times (15 minutes/time) Charging output interface: V8 Charging input voltage current: 5V/1A Charging time: 1-2h Battery: 200mAh/3.7v Optional Color: Black, Pink Package List: 1 * Intelligent Head Massager 1 * USB Cable 1 * Slice Note: The electrode slice is consumable, and its efficacy gradually decreases with the increase of times of use. Please replace it in time. Usage: 1. Put the electrode slice into the device, and peel off the protective film of the electrode slice. (Don't throw the protective film) 2. Wet your forehead with water. 3. Place the product to the correct area so that you can massage effectively. 4. The required mode and intensity can be selected according to the demand. 5. After use, remove the instrument, attach the protective film to the electrode slice and place it in a cool and dry place.