Jbl Go 4 Waterproof Bluetooth Speaker Red Sony FX9 Recoil Pro Transform your home workouts with Transform your home workouts with the Obsidian Surge 500 Water Rower Car Output x 1: 12V Pair two Go 4s for stereo sound or wirelessly connect multiple JBL Auracast enabled speakers for even bigger sound Product FeaturesThe JBL Go 4 packs a serious musical punch delivering big JBL Pro Sound with punchy bass despite its small sizeUp to 7 hours of playtime plus 2 hours with Playtime Boost which tunes and optimizes the performance for louder and crisper soundThe JBL Go 4s IP67 waterproof and dustproof rating ensures this portable speaker can handle almost any environment from a poolside party to a seaside picnicPair two Go 4s for stereo sound or wirelessly connect multiple JBL Auracast enabled speakers using Auracast for even bigger soundUse the JBL Portable app to receive updates get product support and unlock features like the fully customizable equalizer to adjust highs mids and lowsso your music is just right for youThe JBL Go 4 incorporates post consumer recycled plastic and fabric for the speaker grille