USB and power dual-purpose charging? distribution power line?not the USB line.

We must charge for use? can not charge while using

Packing size: 12.8x7.7x20CM

Commercial net weight: 20.4kg

Carton size: 55.5*43.5*64.5CM

Commodity gross weight: 21.7kg

Qty: 60

Color: as shown (randomly shipped)