CPR Call Blocker - Call Blocker

Compatible with most US landlines and home phones; pre-programmed 10,000-number nuisance robocall database; up to 2,000-number additional blocking capacity; 3" display screen; uses power from your phone line

Prevent spam calls or robocalls with this CPR call blocker. Intuitive buttons let you add numbers to the blocked and allowed lists for easy management, while the 3-inch screen displays phone numbers. This CPR call blocker is compatible with most landlines and home phones for versatile use, and a built-in database protects you from 10,000 known nuisance callers.