12-channel USB charging box

12-channel USB3.0 fast charging interface, can charge 12 wireless conference units at the same time; Equipped with 2.4" LCD display to display the voltage value of each channel; Charging current is 650mA, the rechargeable battery capacity is 3200 mA/H, and the charging time <5 hours Normal charging state: LED red indicator light is on, green indicator light is off; Normal charging end: LED red indicator light is off, green indicator light is on; When no unit is connected: LED red indicator light and green indicator light are both off; After fully charged, turn off the power switch first, unplug the charging cable and install and use;