4 in 1 Dual USB Car Charger 3.1A 5V Fast Adapter Socket Digital Display Voltage Temperature 100% Brand New and High Quality Specifications: New design with dual USB 3.1A output, PTTC over cur more→rent protection, voltage, temperature and current display alternately every 10 seconds. Auto power off, while the input current or output current is greater than the safe current, please plug in, will work again. Features: Dual USB 3.1A output. With a temperature and current tester. Easily meet your needs with two usb connectors. Fixed support helps stabilize the USB car charger. A multifunctional product with a 10A protective tube, ideal for travel. Applies to all mobile