O2Cool 10" Battery-Operated Fin Fan with AC Adapter: Dual Power Sources: Plug-in with the AC adapter (included) or use 6 D-Cell batteries (not included) Powerful 2-speed 10" blade Convenient built-in handle makes it easy to transport Compact design makes it perfect for travel easy to carry and store Perfect for office and home Up to 40 hours of battery life

O2Cool 10" Battery-Operated Fin Fan with AC Adapter: Dual Power Sources: Plug-in with the AC adapter (included) or use 6 D-Cell batteries (not included) Powerful 2-speed 10" blade Convenient built-in handle makes it easy to transport Compact design makes it perfect for travel easy to carry and store Perfect for office and home Up to 40 hours of battery life