Digital and Electronic Device Design PowerTRONEX X1 Multifunctional Power Bank by Harry-Hongwei Yang P.T Starlink PowerTRONEX X1 is a power bank with a folding plug and a built-in Type C cable. It adopts an innovative indicator design—the light strip and shows the electricity in a unique way: red indicates dissipating power and blue indicates available power in the battery. As the power changes, the light shines wholly in a gradual changing color which shows vividly the power in a beautiful way. Also, a small light on the bottom will light up when rotating the plug, this is convenient when plugging it in the dark. With a minimalist look, it blends with surroundings well in daily life.