You may have the most sophisticated Bluetooth speaker on the market. But you can’t power it by fire like the Pelty. The Pelty is designed to turn thermal energy from the heat of a candle into the electric energy required to power up the speakers. You don’t need an additional battery to get this working.
The Pelty speaker works with almost any candle. A candle could last up to 5 hours, but you can go as long as you want. The device is compatible with Bluetooth tablets and smartphones. The Pelty is made of ceramic and glass. This handmade speaker system is on Indiegogo right now.