What You Will Receive: you will receive 4 pieces of electric mosquito zappers, can cover large area, the sufficient quantity is enough to meet your daily use and replacement needs, you can also share them with others Quality Material: indoor mosquito zappers are made of quality ABS material, safe and reliable, not easy to deform or break, which can support you for a long time, you can clean insects after turning off the device Easy to Install: indoor bug zappers are easy to use, simply plugs the indoor mosquito trap into a direct power outlet and turns on the indoor fly trap to set it up, you can clean insects with a small brush Widely Applied: electronic fly zappers can repel mosquitoes, bugs, gnats, flies, small insects, moths and can be placed in bedrooms, dining rooms, living rooms, offices, kitchens and more Indoor upgrade technology: The indoor plug of the insect zapper uses purple light waves to trap mosquitoes, and the upper and lower 900V contact nets can achieve instant vaporization and kill mosquitoes, creating a quiet living environment for you