Does not contain or use any harmful chemicals. Works just like the usual electric pest zappers, just portable for easy use anywhere. Get rid of pesky bugs and insects with this easy to use, handheld zapper. Simply push the button and it is ready to use. Works indoors and outdoors, safe enough to use inside the home anytime. Perfect for outdoor trips and picnics, keeping your immediate space insect free is easy. Works on most insects, even fruit flies. Great to have handy in the kitchen when preparing food or even perfect for outdoor BBQ’s.