LOUD OUTDOOR WATERPROOF sound system. Most portable speakers aren’t actually meant for the outdoors and can’t withstand the elements, the ones that can aren’t loud enough to be heard. When you’re at the beach or on an ATV, you need sound to carry in order to hear it over the wind, waves, and boat engines, you need a Turtlebox. Pair any two Gen2 Turtlebox speakers together to enjoy True Left-Right Stereo Sound. Specify green or grey in comments box when checking out.