Portable projector with battery and brightness of 750 lumens

Portable projector with a battery that lasts up to two and a half hours. Android Smart Purchase price: 1900 Selling price: 1300 Reason for sale: Job change. I tested it with movies and it's excellent and enjoyable. Specifications: - Built-in dual speakers, each 5 watts (2*5watt) - High quality 1080P full HD (1280*800), supports 4K - Wireless connection available for projection - 750 lumens brightness, excellent for classrooms; tested for a month in schools - Image quality automatically adjusts based on distance from the wall—very convenient for classrooms and portability, with automatic aspect correction. - I tested it from two meters away and the quality was very high, producing a wide screen on the wall. - I used to teach for 40 minutes; the battery lasts for three classes. It can be used while plugged directly into power and charging. - Comes with a remote control for adjusting brightness, sound, etc. - Compatible with Android, iPhone, and PlayStation. - Supports Arabic language. - Additional specifications: ‎ - If you use the device 4 hours daily, the lens will last up to 20 years - Screen size ranges from 30 inches to 300 inches depending on distance. Can connect audio to external headphones - Supports 3D glasses (if you already have them) - RGB LED lighting - Contrast ratio 10,000:1 - Supports 5 GHz and 2.4 GHz Wi-Fi - Bluetooth 5 - Supports AirPlay, Miracast, and the Eshare app for wireless screen mirroring. - Device weight is only 1.1 kg. I took pictures with lighting so you can see the high quality. The lower the ambient light, the better the colors and clarity. In classrooms without curtains, I turned off the lights but even with sunlight, I didn't face any issues. I placed a tissue box next to it in the photo to show its compact size.