1. 【Multifunctional USB Voltmeter Ammeter】One interface simultaneously displays voltage, current, power accumulation, power and timing. The USB tester is the first choice for digital gamers and electronic enthusiasts. 2. 【Easy to use】Connection method: USB power adapter - USB tester - charging or digital device. The output port is used to synchronize data and charge the battery. The built-in CW3002D chip circuit accelerates fast charging. 3. 【Power-off storage】This usb power tester can store data in case of sudden power failure, which is convenient for viewing the measurement of capacity and power later. Small size, easy to carry and store. The voltage tester is often used to test the quality of 3C digital peripheral products. 4. 【LCD Display Screen】The multi-function USB C Tester uses a 0.96-inch high-definition IPS color LCD display screen to provide clear and easy-to-read measurement results. Visual interfaces improve the user experience and simplify data interpretation. 5.