is entirely provided by batteries. For this purpose, the matching USB charging cable is also included in the delivery. Sockets or power cables are not necessary for the use of this device. Is it possible to use the Mini Air Cooler during the night? The manufacturer of the Buzz B Gone states that the use during the night is not dangerous. Therefore, the fans should be allowed to continue turning while sleeping. For use to fall asleep and operation at night, you should also check if the battery still has enough power or if it is necessary to add water. Is water only required for the Buzz B Gone? The Buzz B Gone can be operated with cool water or ice cubes. For the second option an additional ice box is available at the mini air cooler. You should limit the use of ice to midsummer so that you can continue to enjoy the ice-cold air from the Buzz B Gone as refreshing. What volume should I expect with this Mini Air Cooler? The Buzz B Gone Mini Air Cooler reaches a volume of about 40 decibels. Thus, the mini air cooler belongs to the