Smartphone Cover Color: Black Compatible Models: Galaxy S8 Packaging Contents: Clear Cover Dimension (WxHxD): 75.22 x 161.21 x 9.63 mm Weight:15 g Battery Capacity: 5200 mAh Typical Capacity (Normal Charge): 3150mAh(2.0A), 15.75Wh Typical Capacity (Fast Charge): 1750mAh(1.67A), 15.75Wh Compatibility Representative Models: Galaxy S8 General Feature Packaging Contents: Clear Cover, Screen Protector, Dust removal sticker 2ea, Micro Fiber Cleaner 1ea, Squeeze 1ea, Battery pack, C Type Gender, 0.2m USB cable Physical specification Dimension: (WxHxD)132.9 x 248 x 38.7 mm Weight: 317 g Circuit Amps Input Voltage (Max, Normal Charge)5 V Input Current (Max, Normal Charge)2 A Output Voltage (Max, Normal Charge)5 V Output Voltage (Max, Fast Charge)8.5 ~ 9.5 V Output Current (Max, Normal Charge)2 A Output Current (Max, Fast Charge)1.67 Color: Gold