Features Quickly and effectively solves the low power problem of your devices while on-the-go Supports over-current, over-voltage, over-charge, over-discharge and short circuit protection, safe to use Supports to charge two digital devices at the same time Universal USB

Features Quickly and effectively solves the low power problem of your devices while on-the-go Supports over-current, over-voltage, over-charge, over-discharge and short circuit protection, safe to use Supports to charge two digital devices at the same time Universal USB port fits for most digital devices Has a solid dull polish construction, safe to use Compact size & lightweight for ease of use General Specs 　 Compatibility- iPhone, iPad, Samsung devices, Cell phones, tablet PCs and other digital devices Capacity -4200mAh Connector- 2 x USB2.0 output, 1 x Micro USB input Package Details Weight: 210.16 g Size: 15.5*10.5*4.5 cm