DROK Dual USB 2.0 Digital Multimeter Ampere Voltage Capacity Power Meter 7 Modes Monitor for Fast Charging Data Sync DC 3.2-15V 0-3A Volt Amp Charger Detector Mobile Solar Panel Alignment Tester The USB monitor will display voltage, current, capacitance and power Press the button to switch among seven different display modes Multifunctional: capacitance checking, capacitance cleaning, Output I, Output II USB Output Port 1 is used for both charging and USB communication USB Output Port 2 is used for large current fast charging