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USB or Battery* (AA x 4) powered - Batteries NOT included.
USB works with laptop, desktop computers and phone chargers
Designed to cool computers, laptops or personal use.
Battery option makes it portable to go anywere with you
7.9" x 5.9" x 3.15", with 4.3FT USB cord.
This dual powered 4" cooling fan is great for small working areas, because this fan does not take up too much space and provides a strong breeze. The battery compartment holds 4 AA batteries (not included) that can be used to power the fan for complete portability. Plastic construction will not scratch anything, light weight and durable.
4" Portable Desktop Cooling Fan - USB or Battery Powered (Black) - B00FEN4CZM