SYNTRONICS 20000 mAh Power Bank  (Black, Lithium Polymer, Fast Charging for Mobile)

Unlike other mobile batteries, it is compact enough to fit in your pocket, and weighs approximately 8.1 oz (232 g) and is lightweight and thick:: It won't be stressful even when you hold it with your smartphone::No need to worry about power on your smartphone even in environments where power is difficult to reach for such as business trips, traveling, camping, etc:: The multi-protection system automatically stops charging when the circuit is short due to overheating, overvoltage, or overcurrent:: If the product is damaged during transit, dirty or other defects, the product itself is defective, please feel free to contact seller by email. We will try our best to solve your problem