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Product demos used to require a camera operator, lighting setup, and a post-production editor. With Captions you can produce a polished demo video with just your phone, whether or not you want to be on camera.

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Plan your demo

Before you record anything, answer one question: what is the single thing this demo needs to show? The best product demos focus on one feature or benefit, not the whole product. A 30-60 second runtime is ideal for social distribution. Write a short script before you start. Even a rough bullet-point outline will make your recording faster and your final video more focused.

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Record or generate your talking head

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Option A: Record with Camera and Teleprompter

Open Camera in Captions, paste your script into the teleprompter, and record. The vertical 9:16 format works for TikTok, Reels, and YouTube Shorts. You don’t need a studio. A clean wall and decent window light is enough.
Record 2-3 takes and use the best one. The teleprompter keeps your eyes on the lens and your pacing consistent.
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Option B: Use Prompt to Video (no camera needed)

If you’d rather not be on screen, open Prompt to Video, write or paste your script, choose an actor (or your AI Twin if you’ve set one up), and generate. Captions produces a realistic talking-head video synced to your script, with no filming required.
Prompt to Video requires a Max or Scale plan. See the AI Twin setup guide to create an avatar that looks like you.

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Add product visuals as B-roll

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Gather your product footage

Record a close-up of your physical product, take screenshots of your app or dashboard, or use screen recordings to capture your product in action. These become your B-roll overlays.
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Add media overlays in the editor

In the Captions editor, tap Media and import your product images or clips. Position them over your talking-head footage at the moments you’re describing that feature. Resize and reposition to fit.
Screen recordings work especially well for software products. They show the product actually working, not just described.
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Add a CTA text overlay at the end

Use a text overlay in the final 3-5 seconds to show your price, a discount code, or a call to action like “Link in bio.” Keep it short and high-contrast.

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Polish the audio and captions

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Remove background noise with Denoise

If you recorded at home or in a noisy environment, tap Denoise in the audio settings. This removes air conditioning hum, keyboard noise, and ambient room sound.
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Generate captions

Tap Captions to auto-generate a caption track. Most product demo viewers watch without sound, so captions keep them watching. For demos, choose a clean, readable style like Byline or Blueprint rather than a flashy animated style.
Review the captions for any product names or technical terms that the AI may have misspelled.

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Export and post

Tap Export. Choose 1080p for social platforms. Your captions are burned into the video by default, or you can export an SRT file if you’re uploading to YouTube or LinkedIn separately.

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Tips

  • Show the product actually working. Don’t just describe what it does
  • Screen recordings are the most convincing B-roll for digital products
  • 30-60 seconds is the sweet spot for demo videos on social platforms
  • A clean caption style reads better than an animated one when the goal is clarity
  • Record in a quiet space even if you’re using Denoise. The cleaner the source, the better the result

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What’s next?

Create a UGC Ad

Turn your demo into a UGC-style ad with AI Ads.

Prompt to Video

Generate a talking-head video without being on camera.

B-roll and Media Overlays

Learn how to layer images, clips, and GIFs over your footage.

Audio Cleanup

Remove noise and improve audio quality with Denoise.
Last modified on April 20, 2026