It includes two wireless microphones and a quarter-inch input to get a musical instrument or another microphone. It’s also IPX4-rated and incorporates Auracast, which is scheduled for a March 2025 launch. If your speaker is larger than the size limit, you might be able to check it as luggage. https://www.bluetoothspeaker.top/bass-high-quality-loud-bt-tws-bluetooth-ipx6-outdoor-waterproof-wireless-bluetooth-speaker/