1. DC12 / 24V input, output 5V / 4.2A (maximum) through two ports, allowing you to charge two devices at full speed during the journey. 2. Smart technology is equipped with dual ports to identify each connected device and provide the highest charging power that the device can accommodate. 3. Built-in fuse, automatically stop charging when there is danger of overcharging or overvoltage, to prevent damage caused by overheating, overcurrent and overcharge. 4. Made of fireproof materials to keep you and your car away from danger. 5. Not affected by radio, Bluetooth or WiFi. 6. Wide compatibility.
