Disruptive 4000V, more powerful fly zapper --- Our electric fly swatter is designed with 4000V high-voltage power grid, which can instantly kill flies or mosquitoes in just 0.1 seconds. It's more powerful and effective than those 3000V fly swatters that only stun insects but don't kill them. When an insect comes into contact with a 4000V power grid, a circuit is completed through its body, causing high-voltage current to flow through and vaporize the insect, accompanied by a "pop" sound. 2 working modes during the day and night use --- This mosquito zapper can be used as a handheld electric fly swatter or an automatic bug zapper with purple light. During the day, swing the racket to kill mosquitoes. Turn on purple light at night to attract mosquitoes, and touch the grid to kill them. The 2-in-1 design offers great value! Note: (1) For best results at night, fold the racket up to position the charming purple light behind the grid. (2) Plug in for overnight use. Rechargeable & cordless, suitable for indoor and outdoor use --- This pest killer paddle has a built-in 1200mAh battery, allowing you to use it anytime and anywhere without being tied down by wires or constantly changing batteries. The rechargeable design makes it perfect for indoor and outdoor use, including bedrooms, living rooms, kitchens, gardens, cars, camping tents, and more. Purchase this fly bat for personal use or as a gift for family and friends who suffer from mosquito bites. Safe for humans, pets and the environment --- This fly zapper prioritizes safety and effectiveness. Its 4000V grid is isolated by 2 protective meshes, minimizing accidental impacts that can cause puncture wounds to humans and pets. Immediately shutting down the device eliminates residual current on the external network, further enhancing its safety. Use this fly killer in the summer without the need for spray or smoke, saying goodbye to potential side effects and odors while keeping your home mosquito-free. Reliable quality, worry-free service --- Our fly swatters are designed and manufactured in factories and laboratories, and undergo strict testing and improvement to ensure quality and safety. It has passed CE/ROHS/FCC certification, you can buy with confidence. Experience super effective pest control with our fly swatter zapper