When you shop the radio communication device power space, the first question is not what a piece does today, but what you want it to do for you. The Vintage Transmitter Low Power Communication Device TP-41 1970s 70s Mystery is a 1970s artifact with an unresolved past, and that changes how you should judge its value.
Quick verdict
At USD 99.99, this TP-41 is listed as a parts-only unit in not-working condition. It came from an estate sale of a collector who gathered mechanical and automotive gadgets from the early 1900s through the 1970s. If you collect that kind of vintage hardware, it can be an appealing artifact. If you need a usable radio, this mystery unit is not the right direction.
Who it suits
This device appeals to collectors who enjoy estate-sale finds with a story. The possibility that it was a remote opener is one thread of that story, and it is exactly the kind of open question that radio communication device power enthusiasts like to investigate, display, or simply enjoy as a conversation piece.
What stands out from the listed details
The TP-41 has one single button on a case marked RED. Its simplicity is part of the appeal: with just one control and no confirmed function, it becomes a small history puzzle rather than a complex piece of gear.
Meaningful trade-offs
The central trade-off is the condition. This unit is stated as for parts or not working, so your purchase is based on the artifact itself, not on any assumed transmission ability. Accepting uncertainty is part of the deal. Because the purpose is not spelled out, the device is better understood as a starting point for identification than as a finished radio.
Product note
Vintage Transmitter Low Power Communication Device TP-41 1970s 70s Mystery

Pick this one if you want a 1970s communication item with a genuinely unexplored background; the single-button RED case makes it stand out in a collection. The limitation is the stated condition, so view it as a collectible device rather than a ready-to-use transmitter.
Bottom line
The Vintage Transmitter Low Power Communication Device TP-41 at USD 99.99 is best for a collector who appreciates unresolved vintage electronics. Its value is in the combination of a workbench find and the freedom to investigate what it was made to do. For anyone expecting a functional transmitter, this is not the piece to choose.