Then come the inputs, which are important should you don’t always system on using Bluetooth. The typical inputs Bluetooth speakers consist of are AUX, and USB. There will even be a charging port, most likely a USB C charging input. USB C is pretty standard and offers 2.5 watts https://www.bluetoothspeaker.top/high-quality-loud-bt-tws-portable-bluetooth-ipx6-outdoor-waterproof-wireless-bluetooth-speaker/