AFE AND EASY TO USE--Imitate some kinds of Sound waves to drive away the Mosquito and other bugs, protect your home from insects and rodents without harsh chemicals, nasty traps or unsafe fumes. Completely ECO-FRIENDLY! Just plug it into the 5-12V/2A power source: mobile power, computer, automotive power etc. <br> MULTI-FUNVTIONAL-- Can produce Ultrasonic, Infrared, and Imitation Sound Waves at the same time. Better and Effectively drive off the Mosquito, insects and other bugs <br> AUTOMATICALLY CONVERT THE FREQUENCY--This product will automatically convert the frequency, thus make sure the mosquitoes and other insect pests won't be “adaption� and “immunization� on a fixed frequency. <br> PORTABLE AND CONVENIENT-- This Ultrasonic Pest Repeller is small enough to put inside your bags. You can use it at anytime anywhere: Indoor or Outdoor Activities. <br> Size:40x15x105mm<br> Weight: 13.5g <br><br><img id="lp-image" style="width: 381px; height: 381px;" alt="" src="https://imagizer.imageshack.us/v2/381x381q90/924/EukSa9.jpg" data-width="0" data-height="0"><br><img id="lp-image" style="width: 381px; height: 381px;" alt="" src="https://imagizer.imageshack.us/v2/381x381q90/923/ISWlqg.jpg" data-width="0" data-height="0"><br><img id="lp-image" style="width: 381px; height: 381px;" alt="" src="https://imagizer.imageshack.us/v2/381x381q90/923/6ma3m2.jpg" data-width="0" data-height="0">