Dorobeen Portable Battery Desk Fan, 20000mAh USB Rechargeable, Timer Function, Quiet Operation, for Office, Home, Camping

BATTERY CAPACITY: Equipped with a powerful 20000mAh rechargeable battery that provides extended runtime for continuous cooling comfort | VERSATILE CHARGING: USB-powered design allows charging through power banks, laptops, or wall adapters for convenient use anywhere | TIMER FUNCTION: Features an auto-off timer setting that helps conserve battery life and provides customized operation duration | QUIET OPERATION: Engineered to produce minimal noise while maintaining strong airflow, perfect for bedrooms and office environments | PORTABLE DESIGN: Compact and lightweight construction makes it ideal for easy transport between home, office, and outdoor activities