Features 1. LCD DISPLAY: Provides you with a high-definition digital LCD display that clearly shows power, voltage, capacity, and count data with accurate data and reliable values. 2. CABLE QUALITY TESTING: USB voltage and current tester can test the quality of chargers and cables to provide a safe charging environment for your valuable equipment. 3. ACCURATE MEASUREMENT: Voltage range 3‑15V, current range 0.05A‑3.50A. Built-in professional sampling circuit ensures the accuracy, precision, and stability of the results. 4. MULTIFUNCTION: USB tester is widely compatible with USB A port devices, such as mobile phones, tablets, laptops, car chargers, power banks, wall chargers, cables, etc. 5. COMPACT PORTABLE: Digital USB tester is compact and lightweight, allowing it to be placed in a bag for easy carrying and providing safe charging anywhere. Specification Item Type: USB Tester Material: ABS Model: KCX 017 Input: 3~15V/50mA~3500mA Output: 3~15V/50mA~3500mA Capacity: 0-19999mAh Package List 1 x USB Tester 1 x Manual