Instruct: Classify Amazon reviews into positive or negative sentiment
Query: It Worked Once

We actually bought this when I came down with the flu and no longer had the patience for a regular glass oral thermometer. It worked once, taking about 15 seconds to come up with a fairly accurate temperature. Then it sat for about four months and the next time we tried to use it, it would not register anything but "Low." If the battery is only going to last a couple of months, then although it isn't terribly expensive, it isn't worth what little we paid. Probably would be better if it took a AAA battery and had to be held for 12 seconds.