Harman Kardon Onyx Studio 7 Bluetooth Speaker

Overall this is a great speaker! The only problem I have with it is after a couple of years the battery dies and needs replacing. The problem with this is that there is no battery with the same exact power ratings available and the battery that is being sold as its replacement is not the same battery. This replacement battery died permanently after a couple of months. It was also prone to shutting the speaker off while playing at maximum volume. The battery also had a shorter lifespan while actively playing at high volume. The original speaker and battery are excellent just don't think doing a battery replacement is going to fix the dead battery issue.