Speaking of light, the solar Urbanista Malibu takes advantage of its app to report how much extra playtime you’ve attained from the sunlight it’s absorbed. This small, round speaker contains a organic sound along with a cool design, and it’s built to survive outdoor adventures. However it’s somewhat chunky. https://www.bluetoothspeaker.top/bluetooth-speakers-outdoor-waterproof-portable-subwoofer-bass-wireless-bt-speaker/