Your speaker could interfere with other travellers�?devices. If your speaker is too loud, it could interfere with other passengers�?devices, such as their headphones or tablets. This may make it tough for them to watch movies or listen to music. Loudspeakers must be stored within a carry-on bag or checked https://www.bluetoothspeaker.top/new-arrival-bluetooth-speaker-with-led-subwoofer-usb-communication-handsfree-wireless/