BT5.0 & Speaker Function This portable projector has a built-in Bluetooth 5.0 chip and speaker. You can pair the projector with headphones, speakers or other audio devices via Bluetooth to enhance the sound, or you can enjoy a comfortable audio-visual experience directly through the projector's speakers.HD Projection DisplayFeaturing 1280*720 native resolution, 10,000:1 High Dynamic Contrast Ratio, supports Full HD 4k, 1080P video, provides 40-130 inches projection screen with an optimal projection distance of 5.51 ft. 50% zoom function and low noise up to 25 dB ensures an impressive sound environment.Auto Keystone CorrectionHY300 mini projector uses manual focus and auto keystone correction technology with built-in high-precision sensors to detect real-time movement and focus faster and more accurately. Please use manual focus after the projector is started. Auto Keystone Correction automatically corrects the image up and down. To adjust the side projection, please use the remote control.Widely Used Portable projector with built-in HDMI, USB, and 3.5mm headphone port (please note that you need to buy HDMI cable by yourself) is suitable for TV Sticks/Box, Game Consoles, PCs, Smartphones, Tablets, Laptops, DVD Players, and USB Flash Drives, and so on. You can use it for home theatre, party, work and more.WIFI 6 Smart Projector Say goodbye to the traditional HDMI cable conversion projection, smart projector with built-in WiFi6, faster transmission rate and lower transmission delay, easy and fast to connect to smartphones, laptops, etc., within 5 seconds to connect successfully. It provides a fast and stable projection for videos, games, and more.