Charge your smart device on the go through this Tzumi PocketJuice Endurance Slim 8000 mAh Power Bank. You can charge 2 devices simultaneously, as it has two USB ports. Its UV-resistant protective shell will keep this power bank safe from excess heat. You will get to know the actual status of this power bank every minute via its Four LED indicators. It's Slim and pocket-sized which will allow you to take it anywhere you want and charge on the go. Its handheld special design will prevent this power bank from slipping from the hand. Overall, this Tzumi PocketJuice Endurance Slim 8000 mAh Power Bank is the best.