Relax and recharge with the stylish Astro Glass Style Diffuser Collection. Enjoy up to 4 hours of continuous, aromatic bliss with the 7 LED lights that can rotate or be fixed to one beautiful hue. It's 90ml tank holds water with the essential oil of your choice, the cool mist will fill the room with your favorite scent, transforming your home into a calming oasis. Let the ultrasonic technology take care of the rest - it's the perfect way to customize your relaxation.