It lacks low bass compared into the larger EPICBOOM, too. You could check out the Anker Soundcore Movement Boom Plus If you prefer a similarly priced waterproof speaker with a tad additional reduced bass. On the other hand, the Anker is not quite as small as the Ultimate Ears, https://www.bluetoothspeaker.top/drop-shipping-new-arrival-speakers-indoor-subwoofer-wireless-rgb-speaker-with-bass/