Weberence.com

If it wasn’t for the Buzz Off movement I would have never learned for all those things that go on in the UK. In some stores over there they have equipment that broadcast a sound which is audible only by humans younger than 25 year old.
These devices are called "mosquitos" due to the characteristic [...]

Its probably the next big thing. When most people were using radio frequencies for communications, Powercast was trying to use them to carry power to various devices. And they did it!
Its the first company that manage to make this concept into a reality. At this moment they are discussing with various clients on how to [...]