A group of retro style microphone microphone PPT template

This is a group of retro style microphone microphone background PPT template, slide template with old gray, with old microphone microphone, giving a nostalgic feeling. This PPT template is suitable for making all kinds of presentations and speeches slides;

This is a group of retro style microphone microphone background PPT template, slide template with old gray, with old microphone microphone, giving a nostalgic feeling. This PPT template is suitable for making all kinds of presentations and speeches slides;