You get a "product designer" (?) who designs a case. If your product is "standard enough", you might skip this step.
Then, you reach out to local manufacturers and ones from bigger markets. You get some samples, you check if things work like they should. If you like it, order a smaller batch. Design a quality assurance workflow, or find a specialist who can help you with that so that the manufacturer doesn't ship you 20% faulty products.
Get your products onto the shelves of a brick and mortar store, and/or create a website, sell on Amazon and other portals.
Talk to your customers, listen to their feedback, improve every step a little.
It sounds overwhelming.
I worked for a small smart home startup, and I learned that, for example, in Shenzhen, there is a whole industry ready to help entrepreneurs realize their dream products, and at every step of the way, you can contract someone to help you. In our experience, the Chinese service was both much better, cheaper, faster than European offers.
Then, you reach out to local manufacturers and ones from bigger markets. You get some samples, you check if things work like they should. If you like it, order a smaller batch. Design a quality assurance workflow, or find a specialist who can help you with that so that the manufacturer doesn't ship you 20% faulty products.
Get your products onto the shelves of a brick and mortar store, and/or create a website, sell on Amazon and other portals.
Talk to your customers, listen to their feedback, improve every step a little.
It sounds overwhelming.
I worked for a small smart home startup, and I learned that, for example, in Shenzhen, there is a whole industry ready to help entrepreneurs realize their dream products, and at every step of the way, you can contract someone to help you. In our experience, the Chinese service was both much better, cheaper, faster than European offers.