The Ultimate Ears Wonderboom is our best pick for more than seven years, plus the latest iteration, the Wonderboom four, lastly makes the switch to USB-C charging to keep up with the times. It has a tweeter and a woofer driver with stereo channels. It's an IP67 waterproof rating https://www.bluetoothspeaker.top/led-speaker-waterproof-speaker-outdoor-subwoofer-bass-wireless-bluetooth-speakers/