4) There is a chargeable lithium battery inside? charging for 5 hours? the battery will be full? it can keep working for 1 hours? the machine has a USB charge line as a accessory.
5) The machine has two operating mode? freezing and natural air.
-Freezing mode: it's high technology by evaporating and freezing water. make the sponge wet? put it in the sponge reserving zone of the behind of machine. State up the power? it can make the cool air.
-Natural air mode: take out of the sponge? turn the power on will achieving the natural air.
6) This machine isn't waterproof?so when you wet the sponge? please take it out? it's prevent from wet the machine to burn it out.
