Sick of answering the phone to yet another sales call? Or do you get hassled by nuisance or malicious callers? CPR Call Blocker® takes away the dread attached to answering the phone. It comes preprogrammed with 200 known nuisance numbers and every time you receive another one a press of a button sends them away for good - they cannot call again. You can manually enter the numbers of people you don't want to hear from or adjust the settings so you can't receive calls from certain area codes, from overseas or from suspicious number such as those with lots of 0s. The 202 version features a display screen and it has a much larger capacity than the 108.