KEWIG Fast Car Charger, Dual QC3.0 Port USB Car Charger, 36W Quick Charge Car Phone Charger Adapter with Colorful Voltmeter & ON/Off Switch Fit for iPhone 13/12/11 Pro/Max/8, Galaxy S21/20 (Red) - Z8A

• With dual QC3.0 USB ports supporting, the car charger fast charge two compatible devices simultaneously at QC3.0 speed, up to 4X faster than conventional charging, Dual port total output 36W, each port output 18W / 3A, This car usb charger backward-compatible with QC 2.0 &1.0 Note that some mobile device don't support QC3, Car charger adapter will charges your device at maximum charging speed your device supports This car cigarette lighter charger equipped with colorful voltmeter which can monitor the voltage value of the car battery in real time, allowing you to know the battery level of the car at any time. Colored led lights can also help you easily find the car charger usb charging port in a dark environment How to use? Step 1: Press the switch lightly, the voltmeter LED & USB port work well, Step 2: Press the switch lightly, the voltmeter LED power turn off. USB port work well, Step 3: Press and hold the switch for two seconds, the voltmeter & USB port power turn off Universal dual USB fast car charger compatible with any Android and iOS mobile devices, Deliver the fastest possible charge to all non-quick charge devices, Easy to plug & unplug, perfectly compatible with car cigarette lighter socket