The Ultimate Ears Wonderboom has become our major decide on for more than 7 years, plus the latest iteration, the Wonderboom 4, lastly makes the switch to USB-C charging to keep up with the times. Ruggedness and waterproof design: We give precedence to speakers that are built to outlive https://www.bluetoothspeaker.top/factory-rechargeable-subwoofer-speakers-party-stereo-wireless-music-box-bluetooth-speaker/