Powerology 10000mAh Retractable Cable Power Bank - is a highly functional power source featuring an optimal 10000mAh battery capacity and a built-in retractable cable system that completely eliminates cable clutter. The integrated cable extends when needed and retracts smoothly into its housing when finished, eliminating the need to carry extra cables during daily commutes or trips. Thanks to its compact and lightweight housing structure, it can be easily carried in a pocket or bag. Advanced fast charging technology restores the energy of your smartphones in minimum time. The built-in smart protection system fully safeguards connected equipment from overvoltage, overheating, and short circuits.