Have you ever gotten any annoyance about insufficient power supply for timely shooting in the car? Why not choose our JUSTONE J071 3-in-1 USB Multifunction Dual Slot Smart Charger + 2 x Batteries for GoPro Hero 3/3 + for standby purpose? The dual slot charger pack allows you to charge two batteries at the same time efficiently. Applicable for GoPro Hero 3/3 +,the setmakes it a breeze to keep your device working continuously and smoothly without any doubt. A perfect pack for on-the-go use!<!--Features --><p>FEATURES</p><ul><li> Guarantee secure and timely power supply</li><li> Compact, little space-occupied, portable and lightweight, will not affect the beauty of your stylish car</li><li> Support charging for your treasured GoPro Hero 3/3 +</li><li> A safe and quick way for standby application and emergency</li><li> Bring you efficient charging in the car </li></ul><!--Specifications --><p>Specifications</p><table width="100%" border="0" cellpadding="0" cellspacing="0"><tbody><tr><td width="131"> Brand</td><td width="365"> JUSTONE</td></tr><tr><td width="131"> Model</td><td width="365"> J071</td></tr><tr><td width="131"> Color</td><td width="365"> Black</td></tr><tr><td width="131"> Material</td><td width="365"> Plastic</td></tr><tr><td width="131"> Quantity</td><td width="365"> 1Set</td></tr><tr><td width="131"> Compatible Brand</td><td width="365"> Gopro Hero </td></tr><tr><td width="131"> Compatible Models</td><td width="365"> Gopro Hero 3/3+</td></tr><tr><td width="131"> Compatible Battery Model</td><td width="365"> AHDBT-302 / AHDBT-301/ AHDBT-201 </td></tr><tr><td width="131"> Output Current</td><td width="365"> 800mA</td></tr><tr><td width="131"> Input Voltage</td><td width="365"> 5V </td></tr><tr><td width="131"> Output Voltage</td><td width="365"> 4.2V</td></tr><tr><td width="131"> Dimensions</td><td width="365"> (2.05 x 1.64 x 0.47)" / (5.2 x 4.2 x 1.2)cm (L x W x H)</td></tr><tr><td width="131"> Weight</td><td width="365"> 0.71oz / 20g </td></tr></tbody> </table><!--Package Includes --><p>Package Includes</p><ul><li>1 x Charger</li><li>1 x Data Cable (80cm)</li><li>2 x Batteries (1300mAh)</li></ul><!--Extra Info --><!--produts_compatibility -->