We are looking the inside of a Dyno torch which is a reliable device with unlimited power supply. It does not require the use of batteries. Cool!
式宏十萬伏特 已完結
把步行或做運動時所產生的動能，轉為電能後儲存在CREG BOX內，為其他電子產品或電器供電。 CREG: Cycling or Running for Electricity Generation
