The Ultimate Ears Wonderboom has become our leading decide on for more than 7 years, plus the latest iteration, the Wonderboom four, eventually makes the switch to USB-C charging to keep up with the times. Ruggedness and waterproof design: We give priority to speakers that are built to survive https://www.bluetoothspeaker.top/stand-wireless-mobile-phone-music-player-bluetooth-speaker/