This is a Shure PSM 400 wireless in-ear monitor system.
It is the HF (722-746Mhz) frequency group.
Please check if these frequencies will work in your area. 

It is in excellent condition and guaranteed to operate properly.

Here's what you get:

1x P4T HF 2 channel transmitter
1x P4R body pack receiver
1x 1/4-wave antenna
1x zippered carry case for receiver
1x USA power supply (110-240V available also)

I'm both a performer and an engineer, and I guarantee this to work as it should and to be as described.

I gladly ship internationally.