1. Impressive 20w Power Output: Massive power to charge 4 USB enabled devices simultaneously at full speed
2. Built-in device detection; up to 4 amps of power output.
3. Super Smart: Every USB port charges faster and more efficient with Smart technology
4. Worldwide Compatibility: 110V TO 240V input, plus compact size makes it great for travel
5. Safe Charging: Overcharging, overheating and short circuit protection
6. Color Customizable
7. Output: DC 5V 4A; Input: AC 100-240V~50/60Hz
8. With ETL，FCC，DOE，ROHS compliant.