Urbanista Malibu Solar Bluetooth Speaker, Desert GrayUrbanista Malibu is the world's first solar charging wireless speaker with integrated Powerfoyle solar cell technology. With Malibu's mobile companion app, you can keep track of the speaker's live light charging and historical performance to make the most out of your playtime. The speaker comes with a full day batter reserve that makes sure you will never run out of charge, no matter the lighting conditions.