Portable Mosquito Repellent Eco Friendly Perfect for Outdoor and Camping, Keep Your Family Safe From Mosquitoes with Ultrasonic Wave Technology. &#9889;Its the most convenient way to prevent mosquito bites you have ever experienced. You just need to turn the Buzz Off ON and you ready to go &#9889;It is highly economical,convenient and environment friendly. &#9889;The Anti-Mosquito Function is harmless and nontoxic, its safe technology for humans and pets, &#9889;Only effective with mosquito, does not interfere with the operation of radio,televison or other electronic equipment &#9889;No more having to spray yourself or your loved ones to protect against mosquito bites.