Big Call Blocker

Big call blocker

Model: BS-4009A

* FSK/DTMF compatible
* Max 100 groups incoming call memories(most recent)
* Max 50 groups outgoing call memories(most recent)
* Block 1000 groups unwanted phone numbers
* Block 5 groups area codes or prefixes(1-5 digits)
* 4 levels LCD adjustable
* Block calls with no phone number displayed or private calls
* Blue backlight function
* Retain stored data even lose power
* LED indicator for incoming calls