Listen to songs on this portable solar powered speaker. Moreover, it has Bluetooth connectivity, a TF card slot, and an FM radio function to give you options in playing your tunes. This speaker also has a flashlight that you can use for emergencies. Likewise, you can charge this by solar energy or with the use of a USB charging cable. It has a built-in 500 mAh battery that you can charge for 2 hours. This can play within 2 to 4 hours depending on the volume of the speaker.