Mosquitos can be both an irritation & a danger when travelling overseas, so it's important to do what you can do to protect yourself & your family. The Travel Mossy Repeller drives away female mosquitoes, the only ones that give troublesome bites, by emitting a constant high frequency sound simulating the buzzing of male mosquitoes. This is emitted at variable frequencies, preventing the bugs from adapting to the sound. There are no nasty chemicals or toxins, so it can be used safely by anyone in the family. Product Highlights Protect large rooms from mosquitoes 2 pin plug for overseas travel No toxins or chemicals Choice of 4 intensity settings