niceEshop(TM) USB 2.0 Voltmeter Ammeter Power Capacity Tester Meter Voltage Current Mobile USB Power Detector It can support Qualcomm QC 2.0 quick charge This is the mini USB meter. It can measure voltage, current, power and capacity It adopts the OLED screen, it can clearly display all the data. And it display two colors font, white and blue Three functions:Screen rotation,Power-down storage andOver-voltage and Under-voltage reminding It can be used digital products, mobile phone,power bank,USB flash drive and etc.