1.44-inch LCD Display --- This multimeter features a 1.44-inch high-definition color LCD display, which can display the charging status of electrical appliances in real time. Voltage, current, capacity, , power, equivalent impedance, temperature, and other indicators are clearly visible. Note: The screen is rotatable. Fast Charging --- Supports most mobile phone chargers. Note: This fast charging protocol identification method is for reference only; due to the rapid updates of mobile phones, it may not be accurately recognized. Load Testing --- This multimeter can be used with our load tester to test the output voltage, current, power, and other parameters of mobile phone chargers, power , USB data cables, etc. Caution --- 1. To prevent scratches during transportation, the multimeter is covered with a protective film. Scratches on the protective film are normal and can be removed. 2. Please connect to the USB interface. Correct connection method: Connect from the USB male connector to the USB female connector, or from the Type-C input port to the Type-C output port. Do not connect from the USB male connector to the Type-C output port. 3. This version supports Bluetooth connectivity. Color: As Shown Material: ABS+Metal Package Contents: 1 * USB power meter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.