Skip to content Skip to navigation menuThe SoundLink Flex is a portable speaker that you can easily take anywhere and the perfect musical companion for a daytime walk or an evening in the tent. The SoundLink Flex has been thoroughly tested to meet the IP67 rating and is completely waterproof and dustproof. Immerse him and he just keeps playing. He even floats. It's also protected from dust, so you don't have to worry about the sand on the beach.