The Presence Of 2 USB Ports For Connecting Power Consumers, Which Allows You To Charge Multiple Devices Simultaneously; -Additional USB Type-C Connector; -Maximum Output Charging Current Of Portable Battery 2.1 A. -Enough For Energy-Intensive Devices; -Electro-Chemical System Power Bank Li-Pol. This External Battery Is Compact, Light Weight, Withstands Low Temperature. In Comparison With Li-Ion, The Battery Is More Safe, Due To The Use Of Solid Polymer Electrolyte, Less Exposed To External Influences, Such As Falling And Other Confuses; -2 Xusb (Output), MicroUSB (Input), Type-C (Input); -Simultaneous Charging Of Two Devices, Support Fast Charging; -On The Front There Is A Digital Display That Shows The Charge-Battery; -Protection Against Short Circuit, Overload;