I bought these to share with my wife but rarely ever did.

This one complete package complete with:

2 -Helmet clips
2 -Receivers
2 -Ear phones with microphone
2 -Push to Talks (PTT)
2 -Wall chargers
2 -i-Pod cords to attach your I-Pod to your Receiver
1 -power cord which attaches to your battery allowing on bike power to your receiver
1 -intercom cord allowing direct communication between rider and passenger w/o use of pass. receiver.
1 -Owner's Manual

This would be the perfect 2 up package or for riding buddy.  This package is designed for full face helmets.

These are in excellent condition, work well.   

Here is a link I found on the internet which gives an idea of retail prices (I have no relation to Seller)

http://www.mwsbike.com/hjc_frs

Price: $130 including ground shipping w/in Continental U.S. 

sold