Gino
Poor quality... its supposed to beep when you walk away from it, but this thing beeped by just getting out of site-line ... like if you turn it around or put it in your pocket.  Good if you put it on a stationary table and walked away backward I guess. Can't see how it would ever work with a pet or a kid. Anyway, couldn't get it to work the way it was supposed to without it beeping every couple minutes. Didn't bother returning them, more hassle than I paid for 3 of these. I suggest the Hong Kong maker hire 