Aibocn 21W 4-Ports USB Wall Charger Travel Adapter Built-in Multi-protection System and Premium Microchips for iPhone, iPad Air / Mini, ipod, Samsung Galaxy, Nexus, HTC, Motorola, LG, Google, and More Compact & handheld size, solidly built, Compatible with most cord with a 5A standard USB port. Max to 4.2A. 4 Port Family-size USB Charger (2.1Amp+1.3Amp+2*1.0Amp), conveniently charge 1 to 4 different devices simultaniously. Built-in multi-protection system and premium microchips, no worry to the event of overvoltage, overcurrent, overheating or short circuits. Worldwide used, Input voltage 100-240V at 50-60Hz. ideal for internationaltravel. Convenient power cable included, allows you freely play your devices while charging.