USB Voltage Tester
Interesting to find out my powerbank or charger working condition.
Useful and easy to plug and play.
Good item to have when u need to test if your cable or device is working well.
Very useful tool to test the USB port during charging
Nice and functional item do a great job in accessing the correct voltage
good and accurate.
Nothing to say much... nitecore outscore other brands
Very useful little gadget. Great for checking and trouble shooting.