Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Excellent balance of portability, sound quality and price

I wanted a small, portable speaker that I could keep in my backpack and this speaker fit the bill. And, I didn't want to spend a lot. While you won't be able to host a rave for 100 people with this speaker, you will be able to fill an good size room in a house with clear, detailed sound. Highs are pretty good, mid range is strong and the bass is surprisingly full. If the bass was any better, I would have give 5 stars instead of 4.