Brand - TP-Link, Model - TP-Link TL-PB20000, Battery Type - Li-Polymer Battery, Capacity - 20000mAh, Input Current - DC 5V/2.1A, Interface - Micro USB, Dual USB, Output Current - DC 5V/2.1A, Color - Black, Warranty - 1 year, Others - LED: 4 LED indicator for power level or charging status, Button: 1 button to display power level, Compatibility: Smart devices running iOS, Android, Windows and most other USB-charged devices, Feature: High capacity of 20000mAh, Holds more charges, eg. 4.8 charges for iPhone XS, 2.1A Turbo Recharge could reach full capacity with much less time, Li-polymer battery greatly improves safety, The charger and devices could be charged simultaneously, Ultra-large capacity, Dual Smart Fast Charging Ports Provide Flexible Power for Different Devices, Turbo Recharging Speed, Pass Through Charging, Multiple protection features against (Short circuit, Over-voltage, Over-current, Over-charging, Over-discharging, Over-heating), Travel Ready, Good for Flight, Version: UN Version 1.0, Country of Origin - China, Made in/ Assemble - China