Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Didn't work for us

Sound volume rises and falls, bass speakers sound blown out -- bought September 09 -- only played a few hours total since then (in 5 and ten minute increments every other week or so). I guess we got a lemon - but from the minority of the reviews it seems we are not the only ones. Hope your's works out better -- be sure to check it out thoroughly before the retrun date (a short one) expires.