Launches
Coming soon
Upcoming launches to watch
Launch archive
Most-loved launches by the community
Launch Guide
Checklists and pro tips for launching
Products
News
Newsletter
The best of Product Hunt, every day
Stories
Tech news, interviews, and tips from makers
Changelog
New Product Hunt features and releases
Community
Discussions
Ask questions, find support, and connect
Streaks
The most active community members
Events
Meet others online and in-person
Advertise

King efficacy

I'm businessman and electrical engineer.

#4488231

0 followers 0 following

About Activity Upvotes Collections 1 Stack 1 Review

1 stacked product

Klasshour

Instant-out-of-classroom-support

stacked 1yr ago