1080P high-definition projector, built-in independent sound, 50-100-inch projection screen. Small and portable. Using WiFi Sync Screen Technology, with Micro SD, HDMI, USB, AV, Headphone plugs, allows you to use with Laptop, PC, TV Box, Tablet, USB Flash Drive, Hi-Fi, Headphone, Smartphone. 5 3/4" L x 4 21/64" D