Waterproof Bluetooth Speaker – Wet, Loud and Powerful The JBL Charge 3 waterproof Bluetooth speaker packs a lot of punch into a small package. Yes, it syncs to your phone via Bluetooth. Yes, it is waterproof (IPX7 standard). Yes, it is durable. But how does it sound? JBL Charge 3 Features The Charge 3 is a self-contained wireless speaker designed