I PURCASED PORTABLE AIR COOLERS, MY QUESTION WAS IAM CONFUSED WITH THE
POWER SUPPLY, IT COMES WITH USB CABLE WIRED DIRECLY IN. CAN I USE A 3
PIN 240W. AUSTRLIAN USB ADAPTER AND PLUG IT IN MY WALL SOCKET. OR DOSE
IT NEED TO CHARGE IT UP LIKE A MOB. PH...
