Our portable power QI charger has a SmartCharge Technology feature that will adjust its charging output to charge your device at a maximum speed.Ensures compatibility with all QI-enabled devices and has an LED light indicator with 4 blue light to display that can accurately keep track of remaining power.This wireless portable battery pack has 10000mAh capacity which can charge multiple devices at the same time through its 2.1 Amp dual USB ports.It has built-in safeguards, this Wireless power bank keeps your devices safe from over-charging, over-voltage, over-current, and short circuits.Available color for black,grey,white,customized your customer’s logo by silkscreen print ,full color print or UV full color .It is great promotional gifts for Corporate or High end tradeshow and giveaways.