T-531-M With a resolution of 1.4K and a brightness of 10000LM, you can enjoy clear and bright images on a large 250-inch screen. This allows you to have a movie theater-like viewing experience at home, making movie nights with family and friends even more enjoyable. 2. The built-in 10W HiFi speakers allow you to enjoy clear and rich sound. You can enjoy both video and audio simultaneously without external speakers, eliminating the need for complicated setup and operation. 3. An efficient circulation heat dissipation system prevents the projector from overheating even during prolonged use, maintaining its performance. This allows you to expect a long lifespan and stable performance. 4. With the adjustable zoom function of 50%-100%, you can easily adjust the size of the projected image according to the size of the room and the viewing distance. 5. The ±15-degree keystone correction function allows you to adjust the angle between the projector and the screen, projecting distortion-free images. 6. It can connect to various devices, allowing you to enjoy video and audio from a variety of media sources such as Fire TV Stick, PC, game consoles, and DVD players. ☆ High Resolution and Brightness: With 4K support and 10000LM brightness, you can enjoy high-quality images on a large screen. ☆ Built-in HiFi Speakers: The convenience of enjoying rich sound without an external audio system. ☆ Long Lifespan: The efficient cooling system extends the life of the projector, allowing for long-term use. ☆ Adjustable Zoom and Keystone Correction: Easily adjust the size and angle of the image to suit your viewing environment. ☆ Various Connection Options: Easily connect to various devices and enjoy a variety of media content.