【Automatically Blocking Function】---Automatically block telemarketing and robocalls,no need to press reject function. They will hear warning message to be asked to hang up.
【Add Numbers to White List Automatically】---callers press zero and numbers will added to white list automatically.
【Easy to Install and Use】---elderly members of family had no problem to use.
【Compatible Landline and Telephone-RJ11】---jacks for worldwide compatibility.
【Large Capacity】---block 1200 numbers (up to 16 digits) could be added.

Technical Details

Product Details

Product Dimensions

Package Dimensions
Width : 5.7 inch
Height : 2.2 inch
Length : 5.7 inch

Item Weight: 9.6 ounce (View shipping rates and policies)
Shipping Weight: 9.6 ounce (View shipping rates and policies)

ASIN : B07255NJ7S