Just enjoy the coolness sent by this mini fan physically and mentally. Features: Three adjustable speed gears: You can adjust the wind speed according to your own needs. Portable design: This fan can be held with just one hand, which makes it convenient for you to take it with you. It’s suitable for various situations, such as camping, school, hospital, and office. With strap: You can hang it around your neck when your hands are not free. You can feel the coolness unfetteredly in the hot summer. Bladeless: The bladeless design can prevent the baby’s fingers from being twisted into the fan. Even without parents’ accompany, children won’t get hurt by accident. USB charging: You can charge it through the USB port of mobile devices such as laptops for power supply. Any problems, feel free to contact us. Honor to serve you! Specifications: Name: USB fan Material: ABS+electronic components Color: white/green/pink/yellow(optional) Size: 11.58.23.8cm Power: 1w-5.5w Battery: 3.7V 1200mAh