clear image quality: Supports 4K/1080P video decoding through the clear port. The pixel resolution is 1280x720. The picture quality is clear, and every detail is clearly visible. The quality source has a longer lifespan. Convenient features: This small home theater projector runs Android 11.0 smart OS and includes a builtin BT5.1 chip, allowing you to connect devices such as speakers or headphones anytime and preserve sound details. Innovative technology: The projector features electric focus and keystone correction. When turned on, it can adjust the screen to a rectangle within 3 seconds, and you can place it at any angle or position. Wireless support: Designed with the latest WIFI connection, compatible with Android smartphones and computers. Without wires, you can enjoy content anytime and anywhere. Use case: Family movie night at home — pair with Bluetooth speakers for enhanced sound and project from a mobile device or laptop for a largescreen experience. Use case: Smallgroup presentations or classroom lessons — project from an Android smartphone or computer; keystone correction ensures a clean, rectangular image even if the projector isn't aligned. Use case: Portable entertainment in dorms or shared spaces — stream content from your phone via wifi without cables, enabling easy viewing in tight spaces.