Technically no electronic is entirely waterproof, with plenty of time and depth any speaker will fall short, but some Bluetooth speakers are built more durable than others. Toughness is usually indicated by an official Ingress Defense (IP) score. From 2006 to 2018 Derek was the editor-in-Main of Canadian tech https://www.bluetoothspeaker.top/professional-manufacturer-inalambrico-bluetooth-speaker-for-mobile-phone/