You can simultaneously charge two balloons， saving time and effort (weighing about 1.2kg)， inflated balloons for， but not suitable for foil balloons， magic balloon inflated， another 5-inch too small balloon may also be filled up. General continuous work is not more than two hours， after use， the machine will heat the phenomenon， is a normal reaction， if the temperature is too high， continuous working time will be shortened， the need for timely cooling machine. Special Note filling the air， can not make the balloon float. Also noisier