3gp Kingcom -

The name similarity is unmistakable. It's highly likely that many searches for “3gp kingcom” were from users looking for “3GP conversion for KingCom phones” and inadvertently, or directly, finding the “KingConvert” software.

The format was created by the Third Generation Partnership Project ( 3GPP ) to match the strict hardware limits of early mobile phones. It is a simplified version of the MP4 container format, specifically engineered to require less storage space and transmission bandwidth. 3gp kingcom

Are you trying to off an old phone?