Technically no Digital is fully waterproof, with adequate time and depth any speaker will fall short, but some Bluetooth speakers are built more durable than others. Sturdiness will likely be indicated by an official Ingress Safety (IP) ranking. It’s just like the size of a small clutch bag, with https://www.bluetoothspeaker.top/factory-private-mold-bluetooth-speaker-2200mah-battery-led-speaker/