Portable USB Water Bottle Cap Humidifier Air Diffuser Aroma Mist Maker Home Car Product Feature： Travel Humidifier: It can be placed in any container and easy to use. Portable humidifiers are suitable for homes, offices, cars, hotels, dormitories, camping and outdoor. Portable design, perfect for travel accessory. Small size makes it easy to take with you anywhere. How to Use: Simply plug in the USB plug and you can carry it easily. Adjustable Length: With the adjustable length, you can choose a longer humidifier and a shorter humidifier for your different needs, the flexible design allows you to carry it with you. Ultrasonic Humidifier: The spray volume is very large, reaching 35 ml / hour, which can quickly reach the relative humidity requirement. It does not obscure the entire room. Simple and beauty. Quiet: Adopted ultrasonic technology, the diffuser is very quiet during work or sleep, without any interference. Product Specification： Type: Humidifier Color: White Voltage: 5V Weight: 117g Size: 55x55x215mm/2.17x2.17x8.46in Package Included: 1x Humidifier 2x Long Cotton Core 2x Short Cotton Core 1xUSB Cable 1x User Manual