$100 Complete
Includes US shipping when paid by check or money order

Robert Langston
286 Hudson Street
Cornwall-on-Hudson, N.Y.  12520

Or with paypal, you pay shipping

For sales shipping outside the US, please see my listing on ebay https://www.ebay.com/itm/234977886583

This was the handset shown on Josh's TX-500 youtube review posted at the HRO Website:
https://youtu.be/CiDgjfGv7TY?t=584

Handset/Mic connection from the TX500 Manual:

Photo courtesy of 5B4AIY