We test anything from tiny travel models to 40-pound yard blasters. All of them involve rechargeable batteries for portability. All airlines have size and pounds limits for goods that you wish to bring onboard in your carry on. You'll be able to pair two StormBox Minis to have stereo https://www.bluetoothspeaker.top/inalambrico-rgb-led-light-led-logo-bluetooths-speaker/