Strict production processSafe and stableBuilt-in explosion-proof ring100% quality assuranceColor:black,white,blue,green,yellow ,pinkFunction1.Single USB output2.Charging-red light,Full recharge-green,Discharge-blue3.High quality switch power supply management,Reasonable circuit layout,Static power consumption as low as 20 ohms4.Over voltage, over current, over charge, short circuit protection etc.5.Automatic identification of charging and discharging
