Check the listing for details. TOPK Mini Desk Fan 5000mAh Rechargeable Personal Desktop Table Fan. Color: Black, Condition: New. Listed at 15.99 USD. [Built-in Large-capacity Rechargeable Battery & Long Continuous Use] Built-in high-quality 5000mAh lithium-ion battery, after fully charged, it can be used continuously for about 30 hours in low-speed mode and 6 hours in high-speed mode. In addition, the rechargeable fan is USB-C charging, which can be conveniently charged and used while charging. [720° Rotation & 4-level Wind Speed Adjustment] The clip on fan can be manually adjusted 360° from left to right and from top to bottom, providing comfortable cool air from different angles. The wind speed can be switched between 4 levels: low wind (sleep wind), mid-range wind,strong wind, and super strong wind. When in use, the air volume can be freely adjusted according to your preference. [High-quality Materials and Design] The fan body is made of excellent ABS resin material, which has the characteristics of impact resistance and high temperature resistance, and has excellent durability. The non-slip base reduces noise and makes it more stable. The desktop fan has a compact structure but strong wind power, making it an ideal choice for hot summers. [LED Display] The LED display allows you to easily check the remaining power and wind speed, while the removable fan cover makes cleaning a breeze. The fan can be adjusted 360° both horizontally and vertically for precise airflow control. [Silent Design] The silent desktop fan has 3 curved blades, reducing wind resistance and increasing available airflow area. At the same time, it is equipped with a powerful silent motor to reduce noise. Even at the highest speed, the noise remains at 30db.