Amazon has the Cinemood Portable Movie Theater DLP Projector with Kid-Friendly Content (CNMD0016WT) for $297 with free shipping. List price: $350. Features works as a standalone device, up to 5-hour rechargeable battery, 120+ hours of preloaded kid-friendly content, including Disney educational shorts, up to 12-foot projection, 800x480 output, built-in access to streaming platforms.
Amazon has the Introducing Fire TV Stick Lite with Alexa Voice Remote Lite (2020 model) for $18 with free shipping. Has excellent Amazon Reviews.