These are really useful for kids to play with or for Adults to use when the kids are out playing to call them in the house , I tried them about 6 blocks from my Apartment and they worked perfect It says goes up to about 3 miles , Sound was very clear and was easy to use. I got these to put in a bug out bag that I am getting 5 ready for the family. Would be an inexpensive way to keep in touch if cell phones or things go off the grid. Could be the only way to get in touch with your family. Seems sturdy and the girls love the pink color. Has very clear read out on the front area.