WELUV Battery case providing 4000mAh emergency power for your iPhone X XS, never worry your phone will run out of power on the go.  Notice:  1. NOT compatible with Apple lightning headphones, only compatible with Apple AirPods or Bluetooth headphones. 2. The wireless function of this battery case is compatible with iPhone X XS wireless charging system.  Specification:  Input: DC5V-1A Max  Output: DC5V-1A Max  Capacity: 4000mAh  Battery type: Li-polymer battery cell  Power Indicator:  4 blue LED lights indicate: 0-25%, 25%-50%, 50%-75%, 70%-100% battery power.  When connect power, it will firstly charge your phone, then charge the battery case automatically after phone was full. How to use?  A. Press the power button will show the remaining battery power.  B. Long press the power button and hold for 2-3 seconds to start or stop the phone charging.  Package include:  1*WELUV battery case .  1* user guide WELUV is committed to providing you high quality and creative products, to find more fun with you in life.
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