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I'm looking for an OEM solution for a specialized mobile display device with a few key requirements. We need two sizes, approximately 7" and 10", featuring the ability to use standard batteries (like AAA or AA) rather than lithium-ion options for better longevity. The device will primarily run a simple application focused on playing animations and should be lightweight yet durable for daily usage. Android OS is preferred, and it would be great to include our logo discreetly on the device. Additionally, if it's feasible to design a space for embedding a magnet on the back, that would add value. We're planning to start with an order of 100-200 units, contingent on your pricing and options for a prototype beforehand. I'd really appreciate your insights and a rough quote for different quantities as we refine our concept. Looking forward to your response!