The first night I used this was for my birthday party on a Thursday night. We had 5 people on my alley-facing balcony and this little speaker cranked up to full blast. Got the cops called on us for a noise complaint before 10pm. This should give you a good idea of the power this little speaker smaller than a rocks glass puts out! The sound is clear and it has great Bluetooth range.
This is a great little speaker! I purchased one a year ago for my son because he drives an older vehicle that doesn't have bluetooth. Such a hassle configuring all the cords to get music from his phone to the speakers. This not only solved the problem, but has great sound. So great, in fact, that I've purchased one for myself to use around the house. And you can't beat the price!