Supports Air Play/Mariacast/WIFI Display/DLNA screen mirroring. You can connect for and all iOS devices as well as Android through wireless WiFi 480 * 360 pixels resolution, supporting 1080P decoding, accessing clearer images and more realistic color videos Up to 80 inch screen size to meet diverse needs, even in small rooms, you can enjoy a large screen Diffuse reflection image,non-light ray, lion eyelid LED light source. Long-time viewing without easy fatigue Built-in speaker, no need for external speakers for watching movies or playing games. Independent speaker cavity design and improved sound performance80-inch A new generation of constant temperature fan design ensures stable operation of the system. The fan runs quietly and emits less than 30 decibels of noise Five image modes, easily choose the best projection for different content and environment HDR high dynamic display technology brings better contrast between light and dark, showing a more natural, realistic and vivid picture,allowing users to see more details Function: Connect your phone to the projector (J9 Pro Miracast version) Miracast: (Android only) Step 1: Enable Wi-Fi and mobile data. Step 2: Search for wireless projection and convert it to projection, then open it in "Settings" and select "Cast Projector-***" Screen Mirroring: AirPlay (for iPhone only) Step 1: Turn on the WiFi function for iPhone and connect to the projector SSID. Step 2: Swipe up from the bottom for iPhone to open the main "Screen Mirroring" Step 3: Find and tap "Cast-***" the projector and wait. DLNA (Share videos from your phone to projector) Step 1: Connect your phone and projector to the same wireless access point (WiFi) Scan the QR code and connect to an available Wi-Fi network. Step 2: Play the video on local or network player, find and click on the icon or similar icon. Step 3: Find and click on the SSID and wait. Specification: Brightness: 20 ANSI Light source: LED Interface: USB/HD/TYPE C/AV/DC/IR/HEADEST Image format: JPEG/BMP/PNG Video format: SDTV (480i, 576i)/EDTV (480p, 576p)/HDTV (720p, 1080i, 1080p), NTSC (M, 3.58/4.43 MHz), AMIGO (B, D, G, H, I, M, N) SECAM (B, D, G, K, K1, L) Audio formats: MP3, WMA, MP2, OGG, AAC, M4A, MA4, FLAC, APE, 3GP, WAV Power supply voltage: 100~240V 50/60Hz Built-in speaker: 8Ω, 1.5W x1 (SRS audio technology) Product size: 12.7*8.15*4.85 cm Portable power supply: power bank (9V, 2A)