" 1. Mini size The size of the essential oil diffuser is 12.5cm x 12.5cm x 14.5cm, won't occupy much space, easily place the mini oil diffuser essentials on your desk, counter or on the go. 2. Colorful Light 7 LED color mood lights to match different environments. Each color has two brightness modes (dim and bright), so there are total 14 colors to choose from to meet different demands. 3. Safe Waterless Auto Off It will automatically shut off when there is little water. Don't worry about causing damage to the machine or to yourself. 4. Improve the quality of life The aroma oil diffuser could fill your space with fragrance and increase humidity, release stress and calm your mind. Good product for home office travel. Specification: Ultrasonic frequency: 2.4 MHz Working time: up to 6-24 hours Input: AC100-240V 50/60HZ Output: DC 5V 1A Room range: 20-40 Water capacity: 180ml Water tank material: PP, ABS Automatic shutdown: Yes Quantity of LEDs: 7 Features: Silence: