I bought this new and used it about once a day. Please check the condition in the photos. It can operate for more than 30 minutes. The main unit has a Velcro fastener, making it easy to wash the mop and keep it clean. The photos show everything included (main unit, charger, and one set of 3 mops are new). Operation has been confirmed. I will charge it before shipping, so you can use it immediately upon arrival. I can lower the price to around 300 yen. I am also selling on other flea market sites, so please comment. I do not accept returns or exchanges after purchase, so please refrain from buying if you are overly concerned about this.