Brand Name: foreverlily Power Source: Rechargeable battery Material: Plastic High-concerned chemical: none Origin: Mainland China Voltage: Below-50V AC (Safety Extra-Low Voltage AC, SELV AC) Is Batteries Included: Yes Medical supervision required?: N Working Principle: Normal Light Manufacturing Process: Machine Made Certification: CE Function: Skin Mouisture Number of Pieces: One Unit Commodity Quality Certification: ce Type: LED Mask Facial Choice: yes