Bought this just as a back-up alarm clock because I can put it anywhere (with batteries) and can reach it when I'm in bed. Wish it were a wall plug-in, but knew it wasn't when I bought it. Uses usb cord and/or batteries. Would have liked a longer snooze time, but I can live with it.
Small, compact, easy to use and program. Perfect for anyone who travels or who isn't in the same bedroom night after night and doesn't want to rely on their smartphone to wake them up.