1.Wall outlet with USB ports ensures all your devices stay charged while leaving room for other appliances. Charge two USB devices simultaneously without adapters 2.2A, 5VDC combined charging capacity; each USB port can reach up to 1A on a standalone charge. Provide the charge to iPhone, iPad, iPad Air, and other smartphones, tablets, and USB devices. Does not support Qualcomm Quick Charge technology 3.Smart and safe charging with intelliChip built into the USB ports. Recognizes power need of connected devices, then delivers the maximum power that your devices allow, up to 1A per port 4.complies with 2011 NEC Article 406.14 5.wall plates included;125VAC, 15A duplex receptacle.Trough ETL(Which is same as UL-listed),CETL, FCC Certificate,which will ensure the safety.