With a 50-watt amp to help push out its 120 decibels of peak sound, optimized for the outdoors, this lunch-pail-size system can make serious waves. The Turtlebox weighs 9 pounds despite its tough ABS plastic shell and beefy battery that supports up to 50 hours of tunes at park-friendly volumes (or 8 hours at full blast). It has tie-down anchors so you can cinch it to the deck, but true to its namesake, it can survive being submerged for up to 30 minutes—should you want to scare fish into your boat.
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