Good things come in small packages. Something as small as a keychain, can be of unbelievable utility besides serving as a keychain. The Solar Mosquito Guard is a keychain and a device that can repel some species of mosquito. This is not just in the theoretical sense, but many customers have reported that it actually works. Even better news is that is works on solar energy. It works by activating barely audible high-frequency waves that is not favourable to mosquitoes. As of today, even the smallest gadget that uses alternate energy source is a huge contribution to sustain a green environment besides saving non-renewable energy sources. These innovations should be welcome though small – afterall, small droplets make an ocean. this little thing costs $8.

via : Gaiam119240