The listing, Pair of Scarce Used but Working FM Wireless Radio Shack 43-493 Plug-in Intercoms - Free US Shipping has ended.
This is a pair of used but working and clean and in good shape FM wireless intercoms from Radio Shack, part number 43-493.
Free US shipping. All other countries pay exact shipping.
Support information from the Radio Shack archives is here:
http://support.radioshack.com/productinfo/DocumentResults.asp?sku_id=43-493&Name=Intercoms&Reuse=N
Description from the archives:
Your RadioShack Two-Station FM Wireless Intercom is an advanced one channel intercom system that is convenient and easy to use. It is quick and easy to install. Plug each of the two supplied stations into a standard AC outlet, and you are ready to talk or monitor an area where a
station is installed.
Your system's features include:
* Built-In Signal Bridge - compatible with 3-phase wiring in modern
* Coupling Device homes and other buildings.
* Call Tone - alerts the other station that you are calling.
* Lock - lets you talk hands-free, or continuously monitor a room where a station is located.
* Precision PLL (Phase-Locked Loop) Circuit - provides clear and stable communications.
* Built-In Frequency - reduces line noise and interference. Modulation Circuit
* Talk Indicator - lights when you transmit to another station.
* Power Indicator - lights when the stations are on.