The BRV-360 waterproof speaker fires loud, pure audio on all cylinders. Designed to go where you go, this portable speaker easily fits in cup holders and water bottle cages, and is a lightweight addition to backpacks, sport bags or purses. This speaker distributes smooth, consistent 360-degree sound from dual passive radiators with custom, in-house tuning for perfect sound every time. Its certified waterproof exterior and enhanced distance of 100ft is ideal for any outdoor adventure. The built-in voice control works with your smartphone to give a command or make and take calls hands-free.