Feature:1. Current Calibration Function: Dual USB current voltage charging tester with precise current calibration function, higher current accuracy (already calibrated when shipped).2. Display Data: Dual USB current voltage charging detector displays voltage and current data simultaneously for easy viewing.3. USB2.0 Interface: The USB tester is equipped with a USB2.0 interface for convenient and reliable connection.4. Dual USB Detector: USB male plugged into a 5V charger, female socket plugged into a cell phone and other devices, directly read out the voltage and current parameters.5. Communicating Function: This USB tester supports communicating between the device being tested and the connected device, making it useful for troubleshooting and analysis.Specification:Item Type: Dual USB Current Voltage Charging DetectorMaterial: PCInterface: USB2.0Tested Parameters: Voltage, CurrentCommunicating Function: YesData Calibration Function: Yes.Package List:1 xDual USB Current Voltage Charging Detector