1、Simple Operation: The USB tester is simple to operate, only need to connect the USB interface. 2、Wireless Connection: The USB tester supports bluetooth wireless connection for Android, for IOS, and PC computers, allowing you to observe data changes anytime and anywhere. 3、Support Multiple Fast Charging Protocols: This is a USB tester that supports the detection of multiple fast charging protocols. 4、Real Time Monitoring: The voltage, current are displayed on the same LCD screen, which can monitor the charging status of the mobile phone in real time. 5、Application: This USB tester can be used to test the capacity and power of mobile power supplies. Item Type: USB Tester Material: ABS Accumulative Power Range: 0-999.99mWh Power Measurement Range: 000.00-163.00w Self Consumption Current: <0.025A Impedance Measurement Range: 1-999.9 ohm Temperature Measurement Range: 0-80℃ Timing Time: 999 Hours 59 Minutes 59 Seconds Input Interface: 5A High Current USB Interface Output Interface: USB Refresh Time: >500mS/Times Measurement Rate: About 0.5 Times/Sec Working Temperature: -10~+60℃ Working Humidity: 10-80 (No Doubt Exposed) Working Pressure: 80-106kPa 1 x USB Tester 1 x User Manual