Amazon won't even ship them to CA, NY, and CT.
The range varies, but I've taken down flies at up to 4' with a good shot, not very reliably however. At 2' you're going to get nearly all of them.
IMG_1407.jpg.a3a9bdb45645f80ea79b2752b5011ec9.jpgIMG_1406.jpg.eb014e6aee2eeeae8e4b189eb44174ff.jpg