The Mosquito Repeller Watch uses advanced harmonics circuitry to emulate and emit the ultra sonic high frequency of an approaching male. Pregnant female mosquitos require human blood for their young, and apparently they hate male mosquitoes more than anything. Seems like common sense that a watch that emits the sound of a male mosquito would help repell the biting females. The watch only costs $30. I have no idea if it works, but it sure is less toxic than DEET. I spent the last week in Jamaica doing some research and had some mosquito challenges. However, many of the native healers were quite adamant that when you are healthy and balanced the mosquitos don't bite.
Gadget Madness