Are you tired of annoying telemarketer calls? The Zenith EZ hang up device is here to help and with the easy setup you will be ready to disconnect telemarketer calls in seconds With just a push of a button a short, polite pre recorded message is played and then the call is disconnected. Here is what the telemarketer will hear when you push the button: I’m sorry; this number does not accept this type of call. Please regard this message as your notification to remove this number from your list. Thank You. The unit measures in at 2 inches long by 1 inch high. This item does not work with Digital phone systems or multi-line PBX systems.