Inquiry about Screen-Free Children Audio Storyteller Device NEW

I am seeking an ODM/OEM manufacturer for a screen-free children audio storyteller device. The product should be compact and portable, with physical theme selection, offline audio playback, child-safe volume, USB-C charging, headphone jack, and simple content update capabilities. I require support for MVP production of 300-500 units, with potential for larger scale production after market validation. Please provide information on existing similar product references, recommended architecture, MOQ, prototype cost, tooling cost if applicable, unit prices for quantities of 300, 500, 1,000, and 12,000 units, lead times, certification support, and packaging options.