Vktech Electric Mosquito Insect Bug Fly Killer Catcher Trap Zapper Blue UV Light Environment safe, nontoxic and does not harm human and animals Guaranteed safe to use: No poisons, No traps, No dead pest cleanup, No chemicals, NO pollutants, NO smoke, No sprays, No odor Suitable for long operation, just plug it in Indoor power line network strengthens the electromagnetic wave transmission Does not interfere with the operation of radio, television or other electronic equipment