Features: Build-in rechargeable2000mAh lithium battery, battery can be used up to 5 hours operation (low speed). for PC, power bank and charger plug. Detachable front cover design allows you to remove the mesh cover in 3 seconds, cleaned it without hassle and also save your for time. This quiet fan is compact enough for on a table or wall mount & powerful enough to help provide comfortable cooling in small-medium rooms. USB desk fan is engineered to be ultra-quiet by the silent structure, while delivering high airflow. Quiet desk fan is better for your work or sleep without disturbing you. Quieter and more powerful.One button to easily control the wind level, low/medium/high speed. Choose the direction of the wind you want with together 100 degree tilt rotation. This portable fan is powered by USB and for PC/laptop, power bank, AC adapter, car charger, other USB-enabled power supply etc. Mini fan perfect for use in home, car, office, desktop. Specifications: Material: plastic Air volume gear: 3 gears Battery Capcaity: 2000mAh Rated Power: 5W Size: approx.168x146x240mm/6.61x5.75x9.45inches Color: White Package Includes: 1PC x Desk Fan 1PC x USB Cable 1PC x User Manual note: No retail package. Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!