◄►◄►◄►◄►◄►◄► What is this device ◄►◄►◄►◄►◄►◄►

[Ceiling Cat]

The device has been replace by a modern device to do the same job.

 

[onomatopoeia]

The device has been replace by a modern device to do the same job.

Hearing aid.

 

[wawa]

The device has been replace by a modern device to do the same job.

Pre radar listening for enemy aircraft device

 

[Ceiling Cat]

Hearing aid.

I would' not want to see your version of suppositories!

Pre radar listening for enemy aircraft device

Correct

 

[xix]

I would' not want to see your version of suppositories!

Now or back then?