The Anker PowerDrive is the world's smallest metal car charger. The Automobile Charger is the world's tiniest metal car charger, measuring less than a thumb and weighing just 0.8 oz. Sleek Body and Study Built with an aircraft-grade aluminum-alloy body and scratch-resistant coating to keep it looking as new as the day you got it. iSmart 2.0 Technology iSmart 2.0 technology intelligently identifies and provides the correct charge, making it the quickest and most efficient method to power any connected device. Fast charging has never been easier thanks to two 2.4A iSmart 2.0 connectors. Dual USB Ports When linked to the cigarette lighter connector, you can concurrently power two gadgets, including two big tablets, owing to the combined 4.8A Constant Charge output. When you turn on the ignition or accelerate the car, the input voltage can range from 8V to 30V, and the charger will automatically adjust the voltage to safeguard your device and charge at a constant and consistent rate. Charging is completely secure. The vehicle charger includes various built-in safety features to keep your smartphone secure. Over-and-under-voltage, over-current, and over-temperature protection are built-in to ensure the safety of your phone and other devices. Please Keep in Mind Upgrade Points: The two side clamps on this newly released vehicle charger have been upgraded and will no longer pop out. Due to the protected internal safety of some gadgets, please disconnect all wires for 3 minutes and retry. The Anker PowerDrive 2 24W 2-Port Car Charger comes with an 18-months warranty.