Feature: 1. 2000 GROUPS BLACKLIST: Caller ID box has 2000 groups of large capacity blacklist storage, blocking all nuisance calls.2. LCD SCREEN DISPLAY: Call blocker uses LCD screen display for easy operation and simple buttons for easy operation. 3. PLUG AND PLAY: Call blocking device is designed with dual plugs, plug and play, suitable for most landline phones. 4. ANTI HARASSMENT: Call blocker can block nuisance calls, super filtering anti harassment, guarding private pure space. 5. EASY TO USE: Phone blocker is easy to use, just press the "block" button to block incoming calls permanently. Specification: Item Type: Call Blocker Package List: 1 x Telephone Line 1 x Telephone Blocker 1 x Instruction Book 1 x Bracket |