Product Details  
VS-320B Ultrasonic mosquito chaser
1).The sound emited by the product can only be heard by mosquito,it is hurtless to home electrical appliances,human and pets. 
2).The product is steady and effective.You will get evident effect once use it. And you will drive all the disgusting mosquito out after 5-7 days continuous use. 
3).It has three buttons,turn the buttons can change the frequency have better effective with the pest.When the button in the "dragonfly",that emit sound like dragonflys wing repel mosquitoes; when the button in the "Mosquito|",that emit sound like mosquites wing in a frequency repel female mosquitoes;When the button in the  "Mosquito||",that emit sound like mosquites wing in another  frequency repel female mosquitoes.
 
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