What if I told you that you could buy a Bluetooth speaker than you would never need to charge again? “Charlie!” you would say, “Have you lost your mind? Have you been drinking again?” To which I would answer “No” and “Yes” respectively. Because such a speaker does indeed exist. It’s called the Rukus Solar, and it gets its power from the 620 million metric tons of hydrogen fused each second by the Sun’s nuclear furnace.
Rukus Solar Bluetooth Speaker Never Needs To Be Plugged In