Input 19V/1A CF688Q WPC_Qi Standard Wireless Charger Pad Mat for Nokia Lumia920,HTC Butterfly Droid DNA,Nexus4,LG LTE2,Samsung Galaxy S3/Note2(Need QI Receiver) 1.WPC Qi compliant wireless charging pad, allow to charge for any of Qi compliant devices such as iPhone4S/4/3G, Blackberry, HTC, Samsung Galaxy S3 you need to purchase the receiver as well as gaming console like 3DS, PS3 controller, XBOX 360 controller and etc. 2.Power conversion efficiency up to 78%, can provide up to DC5V/1A transmission capacity, the charging pad enables powering or charging for any other DC5V devices like iPhone4, iPad, Blackberry and etc. 3.It adopts intelligent identification system while its transmitter and receiver unit adopts UART (Universal asynchronous receiver/ transmitter) encrypted transmission control signal which is stipulated by WPC. 4.Magnetic alignment between wireless charging pad and receiver(jacket) to guide the user for correct placement of their portable devices. 5.Specially designed power adaptor with AC100-240V / 50-60HZ Power, suitable for all countries and regions user.