I bought this as a gift for basketball practices. While it is loud enough to fill a gym the sound distorts at the louder volumes and there is no way to adjust the bass out.
Speaker was purchased a month and a half ago. It is amazing, it has more features than the average speaker. It has color changing LED lights when the music is playing. Voice announcement, Bluetooth, FM Radio and much more.
This has been our favorite portable speaker, whether if its BBQing or camping.. the sound quality and all the features (lights, portable battery, etc.) has been incredible. Definitely worth investing in!