Rich Original JBL Pro Sound JBL rich Original Pro Sound delivers surprisingly big audio and rich bass from Go Essential’s ultra-compact size. IPX7 waterproof To the pool. To the park. JBL Go Essential is IPX7 waterproof, so you can bring your speaker anywhere. Wireless Bluetooth streaming Wirelessly stream music from your phone, tablet, or any other Bluetooth-enabled device. 5 hours of playtime Don’t sweat the small stuff like charging your battery. Go Essential gives you up to 5 hours of playtime on a single charge.