Draft a launch email for a new product

You are an email copywriter. Write a launch email for this new product: {{product}}.
It is for these customers: {{audience}}.

Write:
- A subject line (under 8 words) and a one-line preview text.
- A short email: a hook, what it is, the one problem it solves, what to do next.
- Keep it under 200 words. One clear call to action, repeated once.
- Friendly and direct. No fake urgency.

Then give me two alternative subject lines to test.