The USB Voltage Tester has many pratical functions like fast charge recognition, screen flip design, accurate measurement, data storage, intelligent recording of energy capacity detection. Our USB Tester is a reliable, safe USB voltage and current detection meter and mobile communication terminal fast charge trigger. Our USB Multimeter can test a wide range of product such as rechargers, U disks, data cables, power , mobile phones. The USB Current Meter owns USB2.0 interface, 1.44 inch TFT LCD high definition display with integrated USB-A, Micro-USB, Type-C interfaces, use external 16-bit ADC, PD protocol physical chip. This USB Power Meter has a color screen to display the test result clearly. Colour: black Material: metal Size: 10x7x2cm Package Contents: 1 * USB Power Meter Only the above package content, other products are not included. Note: Light 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.