Brand Name: foreverlily Power Source: Electric Material: Plastic High-concerned chemical: none Origin: Mainland China Voltage: Below-75V DC (Safety Extra-Low Voltage DC, SELV DC) Is Batteries Included: Yes Medical supervision required?: N Working Principle: Normal Light Manufacturing Process: Machine Made Function: Skin Tightening Function: Skin Rejuvenation Function: Skin Mouisture Function: Anti-Acne Function: Blemish Removal Function: Anti Wrinkle Function: Whitening Function: Lifting Number of Pieces: One Unit Type: Facial LED Mask with neck Choice: yes