The LUNA™ 4 Plus is a cleaning and red LED light micro-current massage device for facial skin. Indulge your skin in a gentle heated cleanse, while LUNA™ 4 Plus smooths fine lines and refines the complexion, so your skin looks visibly tighter, firmer and brighter in minutes.Body-safe silicone/ABS/copper/glass/gold/zinc alloy. Built-in battery: Li-ion 1000mAh 3.7V. Imported. INCLUDES Clinical and Consumer-Reported Benefits — Participants in a 28-day consumer trial reported the following benefits: