Description: 1: This is a QC3.0 intelligent fast charger, with voltage display, high voltage warning, it can charge rate, there is a switch which can freely select the mode of display and turn on/off more→the power. 2: Press the light switch to turn on the power, it can display the real-time voltage after the full screen is lit for 2 seconds, and then press the button again to switch to the red power indicator. Both display modes can be switched freely by the button, press and hold the switch for two seconds to turn off the power of the device. After turning off the power, it means that the device has cut off the power input and then achieve the effect of saving electricity. 3: when the input
