There are many fancy battery powered Bluetooth speakers on the market. Not all of them are loud enough for every occasion. The SoundBoks 2 is a 122dB Bluetooth speaker that runs for 40 hours on a full charge. It has a shockproof case and weighs 33lbs, so you can move it around without breaking your back.
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The SoundBoks 2 measures 26 x 17 x 13 inches. It comes with a military grade battery.
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