BEAUTOPE Dual-USB 2.0 HUB Charger Doctor Voltage Current Detector Digital Ammeter Voltmeter Multimeter Fast Charging and Solar Panel Alignment USB Tester Mobile Power Panel Monitor Gauge DC Display 3.2-10V 0-3A Red Blue LED Brand new and high quality Small size, convenient to carry, easy to use USB charging voltage and current dual display One-input, Dual-output