Rigorously tested to meet an IP67 rating, SoundLink Flex is waterproof. Dunk it in water, and it’ll keep on playing. It even floats, so it won’t sink to the ocean floor if it falls off your paddleboard. The speaker is also protected against dust, so you don’t need to worry if it gets sandy at the beach. To ensure further protection from water, dust, and debris, the transducer and passive radiators underneath the steel grille are built with rugged, waterproof materials and sealed tightly to the speaker’s housing.