I used this indoors a few times and then stored it at home. I'm selling it because I no longer need it. Operation has been confirmed. *Batteries are not included. *USB cable is not included. Please consider this item, understanding that it is a used product. [Retail Price] 1,320 yen (tax included) The following is quoted from the website: Power Source: 3 x AA alkaline batteries (sold separately) or USB power supply. The wind speed changes in the order of Low ⇒ High ⇒ Off each time the switch is pressed. [Estimated continuous operation time] High wind...approx. 40 minutes Low wind...approx. 90 minutes Dimensions...W80 x D45 x H170mm Weight...86g (excluding batteries) Packaging weight...179g Accessories...1 stand Type...Fan Style...Portable (handheld)