PROFESSIONAL MOSQUITO EXTINGUISHER The indoor mosquito extinguisher uses a violet light to lure flies and mosquitoes. Simply plug the outdoor electric mosquito swatter into the USB cable, and when insects approach the indoor electric mosquito swatter, the fly exterminator gives continuous power to the metal mesh, instantly destroying mosquitoes, flies, gnats, moths and more. SIMPLE TO OPERATE AND EASY TO CLEAN The new outdoor fly killer is powered by USB cable, which perfectly solves the problem of outdoor use. The indoor insect trap can help you kill annoying insects. The mosquito trap light comes with a moving tray at the bottom to collect insects and a brush to remove insect carcasses, making the indoor exterminator easier and neater to clean. SAFETY NET AND QUIET WORKING Designed with safe materials, the outdoor mosquito killer will not pose a threat to the health of humans or pets. This indoor mosquito killer plug-in won't disturb your sleep, almost no working noise.