Platforms like Zedge became the epicenter of this phenomenon, hosting massive libraries specifically categorized as "300 KB Ringtones".
Today, "300 Kb Ringtones" mostly exist as a nostalgic search term for those looking for lightweight, "retro-style" audio that won't clutter their device. 300 kb Ringtones - Free by ZEDGE™ 300 Kb Ringtones
: To stay under the limit, creators would use lower bitrates (like 64kbps or 96kbps) or convert files to mono instead of stereo. Platforms like Zedge became the epicenter of this