I have two of these amazing projectors - one is brand new (tested only) and I'm selling because it's so portable that it's ridiculous to own two. Please check it out online to read the reviews yourself. Quality is amazing, batteries last 3hr+, comes with android / casting built in (including apple mirror). Speakers are awesome, picture quality is awesome and because it's LED you never need to worry about changing the bulb. Comes in box will all accessories.
As you can see on amazon this model retails for $599 USD
https://www.amazon.com/Portable-Speakers-Playtime-1-Second-Autofocus/dp/B07CWJYMFT?th=1
https://the-gadgeteer.com/2017/09/17/nebula-mars-theater-grade-portable-cinema-review/