Technically no electronic is entirely waterproof, with enough time and depth any speaker will fall short, but some Bluetooth speakers are built a lot more durable than others. Durability is usually indicated by an official Ingress Safety (IP) rating. For many persons, the price in the Bluetooth speaker is https://www.bluetoothspeaker.top/wireless-speakers-strong-bass-home-theater-subwoofer-party-stereo-rgb-bluetooth-speaker/