Featuresr wireless charging and wired charging can be underway at same timer accordant with qi standard put forward by wpcr wireless charging for all qi enabled devices such as nokia lumia920 lg nexus4 htc 8x in international edition i9300 n7100r easy to use just press the button lightly and place your qi enabled devices down on the pad wireless charger starts to charge your device green light on for wireless chargingr power conversion efficiency up to 70r safety with low output