Ruggedness and waterproof design: We give precedence to speakers that are built to survive the knocks and bumps of travel. We desire speakers with an Ingress Safety (IP) rating, which lets you know accurately how dustproof and waterproof a speaker is. Carry Documentation: Carry the documentation for your Bluetooth https://www.bluetoothspeaker.top/new-product-multifunction-led-wireless-bt-speaker-inalambrico-wireless-speaker/