Auto-identify Technology- The Lencent multi usb plug charger would identify the connected devices intelligently and provide optimized charging. High-speed Charging - Each port could offer maximum current up to 2.4A (Total 22W/4.4A), high-speed charging for any connected device efficiently, definitely you can charge 4 devices at the same time. Certified Safe - The certifications of EMC/LVD/ROHS make this travel plug a safety system with which would automatically stop charging once the devices are fully charged, or overheat, over-load, or short circuit. Ideal for Travel- Portable Sized USB plug adapter with Interchangeable UK/USA/EU/AUS plugs and international voltage compatibility, makes it easy for multiple devices charging, anywhere you go. What You Get- 4 ports USB mains plug, interchangeable UK/USA/EU/AUS plugs, user manual and friendly support.