This is a current/voltage monitor for USB.. Through it, you can quickly find out which USB cable and USB wall charger/car charger/solar panel charger gives you the fastest charging performance don’t wait, want to dramatically speed up your charging experience? Go getting this must-to-have USB gadget right now.

Features:

• Measure current range: 0.01A-3A
• Measure voltage range: 3.5V-7.0V

Package List:

• 1 x Current Voltage Monitor for USB (random colour)