It can be calculated to the IP scale, which has numbers that check with the protection your unit has from solids and liquids. The primary digit after IP indicates reliable security while the second one pertains for the liquids. Waterproof portable speakers and rugged outdoor speakers from brands like https://www.bluetoothspeaker.top/new-creative-bluetooth-speaker-and-can-be-used-as-a-bedside-multifunction-night-light/