1.Product Standard: Qi
2.Imput Voltage/Current: DC5V/1A
3.Charging Voltage/Current: DC5V/500mA-700mA
4.Working Frequency: 100-200 KHZ
5.Small size, High energy.  
Dia: 69mm, Thickness: 9mm 
6.Various Color Combination 
Shell: White/Black 
Anti-slip sticker: White/Black/Yellow/Blue/Green/Orange/Red
7.Silicone antislip mat, never worry your phone slip away from the charging position
8.Compatible for: Nokia Lumia 920, LG Nexus 4, Galaxy S3, Note 2, Galaxy S4 with receiver card or receiver case, ect. 
9.Package size: 12.5*12.5*3cm,   G.W.(with package): 135g

The Qi standard is simply too finicky, and the additional problems brought on by the lack of Made for iPhone certification mean that we can't recommend the iQi for most users. Until those issues are resolved, only the most ardent cord cutters should consider it.

Pros
Thin design that blends well with soft cases and doesn't add bulk
Compatible with a wide variety of Qi-standard charging pads

Cons
Expensive at $35 for the receiver alone
No MFi certification means frustrating iOS compatibility issues
The Qi standard presents its own set of problems that the iQi can't avoid