Both display number called and have blocking features. They do *not* display the name of the caller if associated with the number, just the number. I wanted these for caller ID as well as blocking, but without the name, only the numbe displayed, they didn't do all I wanted. Presumably they'll work for blocking calls, I didn't try that once I saw caller ID name was missing and just the number displayed.
Other than lacking that feature they both work as far as I know. Phone cords included, I forgot to include them in the photos.
MCHEETA model CT-CID801
Pyle model PCLBLK52
I have PDF user manuals or you can just google for them as I did.
Let me know when you'd like to pick up and I'll leave them on our front porch and email my address (between Davis & Teele).