USB dual meter compact size Can display USB charging or discharging voltage and current simultaneously and on the same screen, alternate or display capacity and power separately Using USB extension cable for input and output at both ends, convenient to use The USB dual meter adopts exquisite SMT technology, so the consistency is very good Built in intelligent charging recognition IC, capable of automatically matching high current charging Color: As Shown Material: plastic Package Contents: 1*USB DC Voltage Ammeter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.