20,000 mAh Power Bank with 4 Wire In-Built Charging Cable And LCD Display Black

The purpose of a power bank is to recharge battery powered electronics when you're on the go., The primary benefit of portable power banks is their ability to provide stable power in times of need., It is used for providing portable power to charge battery powered items like mobile phones and other similar items that have a USB interface, Material: PC + ABS Fireproof, Input: 5V / 2.1A, Output: 5V / 2.1A