This property defines the Unicodes which has Jamo Short Name as B
Characters like ᄇ,ᆸ, etc. are listed under B Jamo Short Name.
2 Characters are present in B Jamo Short Name starting with the Unicode point U+1107 that represents the character ᄇ.
Currently, as per latest version 15.0.0, Unicode supports 53 number of Jamo Short Name. Here are a few examples - A,AE,B, etc.