Altec Lansing RockBox Waterproof Wireless Bluetooth Speaker. Able to Pair multiple compatible Altec Speakers together with this unit. Large bass reflex in back of unit increases the bass sound. Color bar display can be changed to solid or patterns or turned off.

*battery is showing signs of getting weaker. Charge goes from 10% then to 80% immediately after it starts charging a little while. And the same in reverse while using it. It will be fully charged, then eventually drop to 90%, then 80%, then straight to 10 or 20% after a while if you are listening at full blast. Moderate volume levels, especially with light bar off, it seems to work fine though. Selling at a discount compared to others available because of the weakened battery.