Mizco Two Slot USB Travel Charger & Battery kit for Go Pro Hero4 - RFK-GP401

Full Product Description (From the manufacturer)

If you're a GoPro enthusiast, you'll want as little down time in between your shoots as possible. The Re-Fuel Hero 4 Dual Battery Charger will keep your GoPro running all day long. You can charge not one, but two Hero 4 batteries simultaneously with this speedy charger. We've even included a Micro USB cable and a Re-Fuel replacement battery for the GoPro Hero 4 so you can start using your GoPro right away.   Features: Charger has micro and mini USB input ports so you can use either type of cable. LED power indicator lets you know when your batteries are charged and ready to go. Includes a Re-Fuel replacement battery and Micro USB charging cable. Technical Specifications: Input:  Mini USB 5V 2A(Min) or Micro USB 5V 2A (Min) Output:  4.35V  750mA x 2 Size:  2.36  x 1.77 x 0.78 (LxWxH) 60mm x 45mm x 20mm (LxWxH) Weight:  1oz,  30g