Pro Call Blocker Caller ID Nuisance Spam Call Stopper New Black OS

Stop nuisance calls with one button! Brand new in the box. Includes the call blocking device, cables and instruction manual. Next time you receive a spam call, hit that red button! FSK/DTMF Dual System. Caller ID. 4,000 number memory for the blacklist. Blacklist & whitelist switchable. Reviews incoming calls. 5 brightness levels. Red button for 1 click stop for nuisance calls.