It lacks low bass compared into the larger EPICBOOM, too. You may check out the Anker Soundcore Motion Boom Plus If you would like a similarly priced waterproof speaker with a tad more minimal bass. Having said that, the Anker just isn't quite as small as the Ultimate Ears, https://www.bluetoothspeaker.top/high-quality-wireless-rechargeable-double-horn-subwoofer-speaker-heavy-bass-bluetooth-speaker/