Description: brand new and high quality Feature: LCD colorful display screen, high definition, high brightness, easy to observe and watch. Monitor the charging status of your cellphone/charger and other devices, help to extend the life for time. Display the voltage/current/power and other indicators for better observation. Real-time monitoring the data measurement, temperature measurement, accuracy/electricity/capacity detect. Power-off data storage function, convenient for further observation. Provide over-voltage, over-current for protection, delayed power-off for protection. Wide compatibility, it can support QC2.0, QC3.0, APPLE2.4A/1A/0.5A, for An-droid DCP, for Sam-sung and so on fast charging protocols. No need to connect the wire, just plug the USB port, plug and for play, easy and simple to use. Specifications: Item Type: USB Tester Model Number: KWS-MX19 Material: ABS+Metal Size: 68x23mm/2.6x0.9in Color: White, Black(Optional) Capacity: 0-999999mAh Electricity:0-999999mAh Timing: 0-99 hours Time: 0-24h Resistance:0-999.99 Power: 0-150W Voltage: DC4-30V Current: 0-5.5A USB: output USB 3.0 Quantity: 1 PC Note: Transition: 1cm=10mm=0.39inch Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package Includes: 1 x USB Tester