Features Proved Light Therapy Technology - Individually 3 lights（bule/red/orange）. Blue and red light reducing the existing inflamed breakouts and targeting spots before they appear, blue light targets acne-causing bacteria while red light reduces acne inflammation, the orange light improve the dull-looking skin. Unlimited Light Treatment Sessions - No activators needed, powered by USB port or portable battery power bank, you can use it as many treatments as you needed, no more extra costs. Free of Chemicals and UV Light - This Hangsun face mask harnesses the power of proven technology to clear acne and allow the skin to heal itself. Easy and Effective Treatment - Suitable for all skin types, lightweight, safe and comfortable. Visible results in as little as 1 week with results improving over time. Auto Treatment Timer - The light mask will shut off after 10 minutes, goggles are included for better protection of the eyes from the lights.