1、Lightweight mini design, very easy to use, USB interface 2、Put the humidifier into every kind of mineral water bottles and charge it 3、Low power consumption, power-off automatically after 8 hours 4、You can drop the aroma oil into the water to make the air fresher. (Aroma oil is not included) 5、It is great for your home, office and car use Description: Creative household air diffuser USB car mini humidifier aromatherapy bottles of mist 2 Colors. Remove unfavorable odors and smells. Increase humidity of air, reducing dust and bacteria. Moisturizing your skin.  Features: Lightweight mini design, very easy to use, USB interface.  Put the humidifier into every kind of mineral water bottles and charge it. Low power consumption, power-off automatically after 8 hours.  You can drop the aroma oil into the water to make the air fresher. (Aroma oil is not included.)  It is great for your home, office and car use. Specifications: Condition: New Power Type: USB Noise: <36db Humidification Method: Mist Discharge Mist Outlet Quantity: One Mist Output (gallon / day): 5~10ml/H Type: Evaporative Humidifier Classification: Humidification Application: <10 m2 Humidity Control: Humidistat Installation: USB Capacity: <1L Water-shortage Power-off Protection: Yes Voltage: DC 5V Current: 500mA Color Options: White, Black Humidifier Size: Approx. 5.4 * 3cm / 2.1 * 1.2in Special Cotton Stick Size: Approx. 12 * 1.1cm / 4.7 * 0.4in Weight: Approx. 100g How to use: 1. Put the water feeder into the water of the bottle. 2. Connect the power line to USB port, humidifier starts working. 3. Please shut down the humidifier after use it. Package Includes: 1 x Humidifier 1 x USB cable 1 x Special cotton stick Note: 1. Tilt will lead to fog becomes smaller. 2. Cotton swabs care, use a period of time (or when not in use) demolished to dry, pay attention not sticky dust, you can first hand wipe part of the water, and then dry. 3. Applicable bottle: suitable for bottle caliber of 28MM. 4. Humidifier is 8 hours automatic power off function, which is to protect the atomization film after a long time to work to reduce the life of atomization damage, after the power to stop the humidifier, you need to unplug the power to reconnect before they can continue to use. 5. Please allow 1-2mm error due to manual measurement. Thanks for your understanding. 6. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.