Hign-concerned Chemical:NonePower Source:USB ChargerMaterial:MetalBrand Name:vilicoOrigin:Mainland ChinaCertification:CEFeatures: 1. Using EMS micro-current and sound wave vibration, stimulate facial acupuncture points to dredge facial meridians. 2. The specially designed dual rollers fit perfectly against the skin. 3. The mini heart-shaped appearance is small and light, easy to carry in purses, bags and cosmetic bags. Specifications: Material: Metal Color: Pink/White Product net weight: 33g Product Size: 5.7x5.2x2.4cm Package size: 13*9.4*4.3cm" Power supply: rechargeable lithium battery 3.7v170mah Charging time: 2 hours Frequency: 185Hz Noise: less than 50 decibels Function: Micro-current sonic vibration Gear: third gear Packing List: 1* Beauty Device 1* Blank box 1 * Transparent Box 1* USB Charging Cable NOTED: 1.Please allow some deviation due to manual measurement and make sure you do not mind before purchase. 2.The color of the actual item may slightly vary from the images due to different computer screens and display settings. Thanks for your understanding! 3.Before using the product,please read the user manual carefully and keep the instructions for future reference.