Note: Please make sure the hungry device is put in the magnetic inductive center and not askew when wirelessly charging. Compatible with: (listed but not limited) Phones with built-in receiver: Nokia 920 HTC 8X, Droid DNA,Rzound, Incredible 4G LTE Google (LG) Nexus 4, Nexus 5 LG DIL,LTE2 SHARP SH-13C, SH-O4D, SH-O7D, SH-02D Phones needs embedding extra receiver: Samsung S3 i9300/ Note2 N7100 Phones needing external receiver jacket: iPhone 4/4S/5 Specifications: Wireless charging standard: Qi standard I/O voltage: Input: 5V 2000mA; Output: 5V 1000mA Power: 10W Frequency: 100-200000Hz Wireless charger interface: Micro USB interface input Power conversion efficiency: over 75% Transmission distance: 5mm Power adapter: Input: 100-240VAC 50/60Hz; Output: 5.0V 2000mA Color: Black Item size: Approx. 14.5 * 8.4 * 0.9cm / 5.71 * 3.31 * 0.35in Item weight: Approx. 76g / 2.68oz Package size: Approx. 19 * 10 * 5cm / 7.48 * 3.94 * 1.97in Package weight: Approx. 143g / 5.04oz Package includes: 1 * Qi wireless charging pad 1 * USB cable 1 * User manual