Ruggedness and waterproof design: We give priority to speakers that are built to outlive the knocks and bumps of travel. We like speakers with an Ingress Defense (IP) ranking, which tells you specifically how dustproof and waterproof a speaker is. Hi there, this is Michael Montoya. I’m the operator https://www.bluetoothspeaker.top/bluetooth-speaker-wireless-portable-sound-equipment-karaoke-audio-stereo-speakers/