3-layer safety grid: The electric grid is sandwiched between 2 metal meshes, and the gap between the layers is supported by an insulating plastic structure to avoid accidental damage and contact. Electric Mosquito Killer kills mosquitoes in a safe and physical way, and the white stylish appearance makes it very suitable for home use. (Important: For optimal performance and safety, use only when the clapper grid is completely dry.)2 in 1 Mosquito KillerIn addition to the "Handheld Mode", the "Auto Mode" is also available for flying insects. When you push the switch to "ON2" when the blue indicator light is on, the 8 blue lights on the net will emit 360-400nm light to attract mosquitoes and kill them. Plug the device into the base to free your hands. The automatic mode has a lower operating voltage, so it does not make much noise, which is very suitable for nighttime use. Get rid of insect troubles: Size 21.7" x 8.7" x 3.5". Electric Insect Racket is very portable and suitable for picnics, barbecues, fishing or camping. Effectively kill mosquitoes, our fly killing swatter can well help you get rid of small insect troubles outside. Avoid using in rain, damp or wet surfaces. Moisture can cause a temporary buzzing sound during operation. (If buzzing sound occurs: release the button immediately. Please let the racket dry completely before next use.) USB cable power supply: insert the end of the racket into the handle, then snap them together and complete the assembly. During this process, please keep the switch "OFF" to prevent danger. For charging, the Electric Insect Killer Racket should be inserted into the charging base, powered by USB cable (red indicator light on), it can work when charging in "automatic mode". EPA Est. No. 94733-CHN-1 / 3000V Effective Mosquito Killer: Press the switch to "ON1" and strike the mosquito killer in "Handheld Mode". Press and hold the button with the blue indicator light on, swing the racket in the air, and when the mosquito touches the 3000V high-voltage electric net, it will be killed immediately. Release the button after completion, be careful not to touch the net to prevent electric shock.