Instruct: Classify an Amazon review into positive or negative sentiment.
Query: Wow..

This large of sound, with this small of speakers?I am amazed by the sound quality of these speakers. I am usingthem with the Sony D-NE306 CD audio player. A good coupling.I use them at work, outside on the patio, and I plan totake them camping.The 4 AA batt's produce quite a lot of sound.The life of the batteries do seem short though.Around 4 hours or so. Not sure if that can be lenghtened or not. I subtracted 1 Star for this reason. I bought a 6 vdc power adaptor to use when 120v is availiable. I also use rechargeables when line voltage isn't there.But other than that, I am very happy with these speakers!