【Easy to Use】The call blocker is extremely easy to install and use, quick and simple to connect no extra power required. And it is easy for people of all ages to use it. (Caller ID Service is Required For Device To Work.)
【Block Area/Country Codes】 By adding an area code, you can block all unknown numbers from this area
【Unveil a New Stage of Quiet Life】Phone Blocker will help to bring peaceful and quiet to your home as well as relieve the stress and anxiety associated with nuisance calls
【Visual Look and Feel Improvements】Our landline phone Call Blocker features a clear caller display screen, large red "Block " button, make it more convenient and easy to operate.
【Detailed instructions】We provide complete and detailed instructions, so that you can solve any problems you encounter when using the call blocker just by opening the instructions.