How to protect against mosquitoes and sandflies.

software for mobile phones (adapted for Nokia) and sound file imitates the sound of a flying dragonfly (the natural enemy of mosquitoes), and the male mosquito (the company that avoids fertilized female mosquitoes, which just you and bite) that can be run on a conventional cell phone.

The effect of 98% deters mosquitoes at a distance of 2 meters from you.