The Andy Unearthly Resonator is one of the best portable speakers that is available today. It is the ideal option for all those who are considering buying portable speakers online, but aren’t sure about the quality of the output. This portable speaker also has a portable music player from which you can play all your songs on the go. The Unearthly Resonator has an impedance of four ohms and a maximum power input of 20 watts. It is blue in color.