Here is a Bluetooth enabled fan that helps bring cooler air inside. The Lasko W09560 Twin 9-Inch Window Fan works with the Lasko app on iOS and Android devices. Each fan can be independently programmed. You can set both to bring cooler air inside or exhaust hot air from the outside.
The Lasko W09560 fits windows from 24 to 32″ wide. It doesn’t make a whole lot of noise and has a convenient electric timer. It is ideal for double hung, casement, and sliding windows.[where to get it]