2 pcs. Multifunctional blocking of connections with 1500 capacity connection ID display Description: This is the latest version of Blocking Phone Calls with Hidden or Unavailable Call Numbers that can be blocked. There are no fees associated with using it the manual has also been updated to improved with better guidance in English. Block up to 1500 individual phone numbers (including incoming and outgoing calls), prefixes, and up to 10 area codes. One za touch blacklist function very easy to operate even without instructions It's better to set call blocking in-line (connected directly to the phone, then to the phone line) Although it can also be set in parallel with the phone to work, but some phone systems do not work. Permanent blacklisting of numbers even after power off or phone line disconnection. It has a 3-line LCD display with an obvious “Blacklist” button. Specifications: Blocks up to 1500 phone numbers on the BLACKLIST Support za one touch blacklist Block entire area codes (up to 10) Block calls without caller ID (shown jako UNKNOWN, OUT OF AREA, PRIVATE, etc. ) Block up to 1500 outgoing phone numbers, prefixes or area codes Stores 100 of recent incoming and 50 outgoing numbers LCD display with 4 brightness levels Mains power supply (no batteries or external power supplies required) Compatible with FSK/DTMF and PSTN stationary lines NOTE THE CALLER'S ID SERVICE IS REQUIRED TO OPERATE TEGO PRODUCT. Block country codes, country codes, international calls, private calls, calls not available. Size: approx. 98x85x40mm The package includes: 2x connection lock 2x cable 2x linear connector 2x English User Manual