Power bank with 900mAh polymer battery built-in that exclusive designed for Apple Watch. There's aMicroUSB port to be connected to charge both Apple Watch and product itself. It has a 4 levels LED light to indicatethe present battery and charging status.
Specifications:
Contains：Chain x 1，Switch Button x 1，Micro USB Femalex 1，Wireless Charging Module x 1
Switch Button : Power-on with one click, Power-off with long press
Micro USB Female：Max support 5V/1A to charge both Battery and Apple Watch
Wireless Charging Module : Support charging