The prefix RJ indicates that this is a digital product intended for a general or adult audience, typically found on the DLsite platform.
Codes in this format usually correspond to high-quality binaural ASMR recordings or "doujin" voice works, where a voice actress performs scripted scenarios designed for headphone listening. hentaku.info_RJ01019874.rar
To access the contents, you will need a utility that supports .rar files, such as WinRAR or 7-Zip . The prefix RJ indicates that this is a