Breaker 19. Looks like we got us a convoy...

They are still used. Stop by a major interstate truck stop if you want to see a good selection in person. Midland, Cobra, Uniden seems to be the brands of choice, or the surviving manufacturers.

One interesting feature on some radios is 'driver alert'. It makes a loud sound at a set interval to startle you back to consciousness.

Some also have weather radios built in.

You can get a basic new unit for under $30.