Mini USB Aroma Diffuser: USB powered aroma diffuser can be connected to desktop, laptop or bank. It is compatible with any DC 5V adapter that connects to the outlet. Note: 1. This diffuser humidifier is not wireless and must be connected to a power source. 2. Not battery powered, USB cable included, USB adapter not included. 3 in 1 Ultrasonic Essential Oil Diffuser: It is an Aroma Diffuser Room Air Humidifier Night Light. You can use the light function of this essential oil diffuser as a night light in your children's room to keep them company. You can also infuse a few drops of essential oils while you work to create a light scent that relaxes the mind and increases your productivity. Small and space-saving: the portable aromatherapy diffuser for essential oils has a capacity of 230 ml and can be used for up to 10 hours. The fragrance oil diffuser is small and does not take up space. The ultrasonic aroma diffuser is perfect for the office, yoga in the bedroom, chatting in the living room in the afternoon, or sleeping at night. Auto shut-off function and Energy Saving: When the water tank is empty, the essential oil diffuser will automatically shut down, which can effectively prevent equipment damage and ensure your safety. Keep this ultrasonic weapon diffuser open at night, you don't have to worry about the product overheating. Easy to use: It can meet all your needs of this device from one click, power on/off, night light on/night light off, 7-color night light cycle/monochromatic night light, continuous spray/intermittent spray. It is an ideal gift choice for children, friends, family and yourself. It is also suitable for birthdays, Father's Day, Mother's Day, Christmas, Valentine's Day, etc.