JBL Boombox 4 - Most Powerful Portable Waterproof Speaker - BlackThe JBL Boombox 4 brings the boom wherever we go. Its portable, waterproof, and dustproofso we never stress about weather or spills. We get massive JBL Pro Sound with a Bass Boost that lets us pick between deep or punchy bass, depending on the vibe. Boombox 4 boasts bigger sound than ever before, lighter for easier carry, and up to 34 hours of playtime on a single charge. View on manufacturer's website JBL Boombox 4 Most Powerful Portable Waterproof