Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Frustrating Product

My brother and I have two of these dr beats which eat batteries at an obscene rate and have a ridiculous glitchy problem of reseting whenever it feels like it.On other listing of this product up to 20 out of thirty people report this problem and it is mentioned on many customer review sites.I've spent over a hundred dollars over the two metronomes so far and now i do not even have a single one of them working properly.Boss ought to do a recall...