The solution towards the concern of if you could take a portable speaker on the plane is a bit difficult. The FAA does not specifically prohibit the carriage of portable speakers in checked or carry-on luggage, but individual airlines might have their individual guidelines. It's always best to check https://www.bluetoothspeaker.top/wireless-speaker-audio-subwoofer-party-box-music-bt-speaker-wireless-waterproof-battery/