Experience bliss and harmony with the SERENE Aroma Diffuser and Humidifier with color changing light from Merkury Innovations. Therapeutic benefits include relieving stress, removing odors and hydration. Up to 3-6 hours of continuous operation. Perfect for living rooms, bedrooms, office and more. Two cotton swabs and USB power cable included. Features Humidifier Aroma Diffuser USB Powered Filters Air Enhance Sleep Moisturize Skin