Ruggedness and waterproof design: We give priority to speakers that are built to outlive the knocks and bumps of travel. We choose speakers with an Ingress Protection (IP) rating, which tells you exactly how dustproof and waterproof a speaker is. So it’s best to check with the airline to https://www.bluetoothspeaker.top/hot-selling-hifi-heavy-bass-wireless-speakers-waterproof-portable-outdoor-bt-speaker-with-fm/