Ultra-Portable Jbl Pro Sound With Punchier Bass Don't let its little size fool you. The JBL Go 4 packs a serious musical punch, delivering big JBL pro sound with punchy bass. Your friends won't believe how much great JBL Pro Sound comes out of such a small speaker. Up To 7 Hours Of Playtime Plus 2 Hours With Playtime Boost Don't sweat the small stuff like charging your battery. JBL Go 4 gives you up to 7 hours of playtime on a single charge. Simply tap Playtime Boost to prolong the playtime, adding up to 2 hours to your battery life. It tunes and optimizes the performance for louder and crisper sound. Waterproof And Dustproof The JBL Go 4's IP67 waterproof and dustproof rating ensures this portable speaker can handle almost any environment, from a poolside party to a seaside picnic. Multi-Speaker Connection By Auracast Want even bigger JBL pro sound? Pair two Go 4s for stereo sound, or wirelessly connect multiple JBL Auracast-enabled speakers using Auracast for even bigger sound. Made In Part With Recycled Materials The JBL Go 4 incorporates post-consumer recycled plastic and fabric for the speaker grille. It's also packaged in FSC-certified paper printed with soy ink. Vibrant Color Options The JBL Go 4 features exclusive colorways inspired by the latest street fashion and lifestyle trends, introducing completely new shades and combinations. Jbl Portable App Use the JBL Portable app to receive updates, get product support, and unlock features, all straight from your phone. Fine-tune your sound with multiple EQ presets options. Or use the fully customizable equalizer to adjust highs, mids, and lows—so your music is just right for you.