Carrying multiple charging cables for both iPhone® and Android® devices can be cumbersome. This power bank features a built-in input/output cable that simplifies charging just unplug the required port. The cleverly designed cable slot prevents loss. Additionally, the cable allows for fast charging of the power bank itself. If you're looking for a compact, stylish, and efficient portable charger, this is your choice. The Charmast 20W fast charging power bank offers rapid charging for both your phone and the power bank itself. Ideal for frequent travelers, it's the practical travel essential.