Features: Adopt quality environmental material, with quiet operation, rotatable angle 50 degrees from up and down, 60 degrees from left and right. Convenient to charge, mini size saves space.the fan is equipped with a non-slip base and can stand at the table. Build-in rechargeable 4000mAh lithium battery, battery can be used up to 5 hours operation (low speed). for PC, power bank and charger plug. 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. 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 Input voltage: DC5V,1A Battery capacity: 4000mAh Battery model: 18650 lithium battery Charging time：3hours Using time: 1-5.2hours Size: approx. 215x168x140mm/8.46x6.61x5.51in 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!