Features: Powerful airflow and 3-speed adjustment: The USB desk fan is powerful and provides powerful 360-degree airflow in any direction you want. 3-speed shifting provides you with more choices in different temperature environments. A variety of power supply methods: suitable for mobile power supplies, standard adapters, sockets with usb, notebooks, desktop computers and other products with usb. Quiet operation: The small silent fan adopts a silent structure, ultra-quiet design, and provides strong airflow at the same time, giving you a very comfortable feeling. Portable Size Wide Application: The USB fan is mini size, it is versatile and the perfect size, suitable for office, bedroom, kitchen, outdoor activities, etc. Energy-saving and healthy: Our fans are more efficient and energy-saving, while providing circulating airflow to your room for healthier use. Specification: product name: F118 desktop small fan Battery capacity: 2000mAh Used power: 4W Charging voltage: 5V Battery voltage: 3.7V Product color: morning fog white, deep lake blue, light snow blue, olive green(Optional) Product size: 160*100*173*mm Product Net Weight: 450g Material: ABS+PP material Working Mode: Three-speed wind speed Charging interface: USB charging