Car charger with double; Jnym Car Power Socket Switch QC 3.0 Fast Charger 36W 12V 24V with Color Digital Voltmeter Car Accessories Feature: 1. Smart Fast Charging: Our car charger is a smart fast charging device with voltage indicator, high voltage alarm and charging speed display. It has roacute; also the switch, which; RY allows you to freely switch between display modes and power on/off the device. 2. Real-time Voltage Indicator: When powered on, the car's power socket switch full screen will light up for 2 seconds, displaying real-time voltage. Press the switch again and the light power indicator will switch to red mode. You can freely switch between these two display modes by pressing a button, and a long press on the switch for two seconds will turn off the power to the device. This means that the device is