4-in-1 Fast Car Charger: This fast car charger has 2 x 66W Type-C retractable cables. There are also additional USB-C and USB-A ports for fast charging 4 devices simultaneously, allowing you to meet the charging needs of you and your family at the same time. Flexible Retractable Car Charger Design: The retractable car charger has a cable length of up to 90 cm/35.4 inches each. The retractable cable can automatically retract into internal storage. This is convenient for rear-seat passengers and also solves the problem of tangled cables in the car, providing you with a clean and comfortable car environment. Voltage Monitoring Function: The smart fast car charger can display the car's voltage, which is useful for you to check the car battery's health at any time and make quick adjustments. And with overload, overcurrent, overvoltage, temperature control, and short-circuit protection functions, it can protect your device from overload damage. Colorful Indicator Lights: This fast car charger with a seven-color indicator light shows you at a glance if the car charger is correctly connected to the power supply, making it easy to find the charging port even in the dark, and comes with a separate on/off button to turn off the light when you don't need it. Wide Range of Use: 12V USB C socket suitable for most 12-24V DC vehicles, such as cars, boats, trucks, motorcycles, RVs, etc. Also compatible with most mobile phones and digital products, such as Apple, Android, and iPad.