Microphone Transmitter

How do I connect two Wireless Lapel mics to the same receiver for video recording?

I have one camcorder and I want two lapel mics for a video project. I have one mic input hole on the camcorder and I need two mics. I was thinking of using this mic:

http://www.amazon.com/Matrix-Wireless-Lavalier-Microphone-System/dp/B0002KR7EU

but I need two. Does the [...]