Electomania® black Dual Battery Charger fit USB Charging Cable Cord compatible for Gopro Hero 4 Description:  Compact portable design, convenient for travelers and business users 2 battery slot,  you can charger 2 battery at same time Size (L x W x H): Approx. 5.5 x 4.3 x 1.8cm Suitable for Gopro hero 4  Color: Black  Package Includes: 1 x Charger 1 x USB charging cable  tip:Product colour may slightly vary due to photographic lighting sources or your monitor settings also allow for 1 to 2 cms difference in the size due to different measuring methods.