From a sweaty, near-catastrophic Shark Tank demo to a billion-dollar acquisition by Amazon, Jamie Siminoff's story of founding Ring is the ultimate underdog tale of invention, grit, and relentless reinvention.

While tinkering in his garage to solve his problem of missed deliveries, Jamie hacked together a Wi-Fi video doorbell. His wife called it a safety game-changer. The Sharks called it a pass. After walking away from Shark Tank empty-handed and broke, Jamie rallied a ragtag team of Craigslist hires and turned rejection into rocket fuel.

Through near-bankruptcy, factory disasters, and wild wins, complete with celebrity investors like Shaq and Richard Branson, Jamie built one of the most iconic consumer tech brands of all time.

Told with unfiltered honesty and humor, Ding Dong isn't a polished success story; it's a blueprint for anyone who's been underestimated, rejected, or told to quit.

Because when opportunity knocks, the real question is: will you answer the door?

About the Authors

Jamie Siminoff is the inventor of Ring and author of Ding Dong, a behind-the-scenes look at how a garage-built video doorbell called Doorbot became a $1 billion acquisition by Amazon. A serial entrepreneur and lifelong inventor, Jamie has launched industry-shifting companies including PhoneTag and Unsubscribe.com. Jamie holds a Bachelor of Science in Entrepreneurship from Babson College.

Andrew Postman's first collaboration, Chasing Daylight by Eugene O'Kelly, was included in The 100 Best Business Books of All Time. He has gone on to more than a dozen other collaborations, and was entrusted to update the self-help classics How to Win Friends and Influence People and How to Stop Worrying and Start Living, both by Dale Carnegie. He has written about sports, computers, pop culture, life and death, and more, including (occasionally) in his own books.

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