When either phone goes off-hook, the other phone rings and flashes (if it's a Batphone). Provides two seconds of dial tone and ring-back signal to the calling phone. Has standard RJ11 modular jacks. You can have up to 2.6 miles of 24-gage wire between phones. Even works with cordless phones. Requires electrical outlet. (Phones are not included.)

FREE "ground" shipping in the USA.

Ringdown Circuit connects two phones for intercom. FREE SHIP


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    West photo from ComicBook.com

    Trump photo from Trump campaign website

    TV series photos from ABC TV

    Courthouse photo from Library of Congress

    Car photo from the Secret Service

    AF1 photo from the White House

    Wayne Manor photo from  enewsi.com