Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Great Sound, Lousy Battery

While the product sounds great for the small package, and is quite portable, the battery life is worse than awful. I bought this to use at tailgating for football games, and was happy, until the battery only lasted three hours. I took it back, tried another one, and the same thing happened.If battery life is not important to you, the speakers definitely sound good for their size, but if you're looking for something with a reasonable battery life, this isn't it.