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This Ultrasonic Repellent Keeps Mosquitoes at Bay

 - Sep 18, 2009
References: coolest-gadgets & inventorspot
While there is no shortage of pest repellent products out there, one you can take with you wherever you—and your laptop—go is decidedly convenient. This USB Ultrasonic Mosquito Pest Repeller makes mosquitoes go bye-bye as soon as you plug it into your laptop or main PC.

If you’re someone who likes to go camping with your laptop, then this is your jackpot. All you have to do is plug it in to release ultrasonic frequencies, which have a range of up to 1.5 meters, to repel away insects. This pest repellent doesn’t use any chemicals so it’s a bit more eco-friendly than other options—and you aren’t covered in the smelly film that usually accompanies the normal insect repellent.