O2COOL New 10" Battery Operated Fan with Adapter, Gray, 2 Pack Includes 2 of the o2cool 10" battery operated fan with adapter, great value Runs on 8-D batteries (not included), or AC Adapter (included),Up to 40 hours of battery life 10 Inch Fan Blades,Tilts for directional air flow Perfect for camping and outdoor activities Compact folding design makes it great for travel, Easy to carry and store