The UE Wonderboom 2 along with the UE Boom three are quite portable and durable. The Wonderboom is slightly much more portable than the other two, weighing in at fifteen ounces and boasting IPX7 waterproofness. Its small and stout shape also can help it disappear inside of a backpack. https://www.bluetoothspeaker.top/factory-direct-popular-portable-wholesale-rgb-light-bluetooth-speaker/