Car Charger Adapter w/ 2 USB Smart IC chip technology included to avoid overcharging INPUT: 12V-24V - 50-60Hz. -- OUTPUT: 5V1A. Automacticall adjusts to all voltages amd frequencies in most countries Charge any phone - Smart IC chip technology included to avoid overcharging ontains power surge and over-loading circuit protection, current limited and auot-restart after short circuit removed