Eco Trees

It approaches the summer and on the market are many new solar gadgets that help us to bump the strong heat outside. As an example we show this small fan personnel, without batteries, which can be set in the wing of a hat or a cap and Torre Hill promises to save heat. As we seen below, has a small solar panel that generates electricity it needs.

Another example is this drive away mosquitoes fed with solar energy that generates an ultrasound not audible to the human ear that keeps them away. The period of load is about three hours. Both gadgets are sold at a price of $ 10.