Spelt Eco-Friendly 5000mAh Power Bank is engineered using Wheat Straw. This is good and sustainable for the environment, but it also has practical advantages. Wheat straw doesn't get as hot as plastic, so it helps keep your phone cool to avoid damage. It's also extremely durable, the hue doesn't fade, and it's quite resistant to scuffs and scratches. With 4 LED battery indicators, and with 1 type C output/input, 1 Micro USB input and two 2.0A USB outputs, you can quick-charge multi-devices