Your speaker could interfere with other travellers�?devices. If your speaker is simply too loud, it could interfere with other passengers�?devices, which include their headphones or tablets. This may make it difficult for them to watch movies or listen to music. four. Label your bag with your name and contact https://www.bluetoothspeaker.top/new-bluetooth-speaker-subwoofer-inalambrico-party-music-wireless-speaker/