This property defines the Unicodes which belongs to Ethiopic Extended B block
Characters like 𞟠,𞟡,𞟢, etc. are listed under Ethiopic Extended B Block.
32 Characters are present in Ethiopic Extended B Block starting with the Unicode point U+1E7E0 that represents the character 𞟠.
Currently, as per latest version 15.0.0, Unicode supports 328 number of Block. Here are a few examples - Latin Extended E,Adlam,Aegean Numbers, etc.