Technically no electronic is totally waterproof, with adequate time and depth any speaker will fail, but some Bluetooth speakers are built much more durable than others. Durability is generally indicated by an official Ingress Protection (IP) ranking. The speaker also boasts built-in LED lights that you can customise through https://www.bluetoothspeaker.top/new-arrival-speakers-waterproof-subwoofer-wireless-bt-5-0-speaker-with-bass/