It charges conveniently through a USB-C connection, making certain that you can certainly recharge it even on the move. Due to the fact passive radiators don’t have their personal devoted electrical power supply, they can’t get as loud as separate woofers can. Take a look at inputs and features: https://www.bluetoothspeaker.top/outdoor-waterproof-bluetooth-speaker-high-powered-subwoofer-battery-powered-sound/