The latest model UC46 of brand Quarice!!!you can connect your phone/tablet/iphone/ipad with the projector's app UNi-Link OS in Wifi.No more wires!!!(NOTICE:UNi-Link OS is Compatible with above Android4.2.2 IOS6.0 and Win8.1 system.When you use it please confirm a good network condition ).If wifi display can't work normally please contact us we will send you detailed instructions.YouTube Testing Video 8MQxnj3dmFE  Copy code in YouTube search bar</br>Can provide crystal clear image in dark(Better than 1200 Lumens)!Image size 36-130 InchesNative Resolution 800*480 Contrast:800:1 Aspect Ratio: 4:3/16:9</br>Besides Wifi Display By UNi-Link OSYou can watch your favorite programs with bigger screen via VGA/HDMI/USB/SD Card; Connect your PC / Laptop / DVD Player to enjoy videos or movies. Connect Playstation PS3 PS4 or X-Box ONE Wii via HDMI port to enjoy games on so big screen</br>For perfect sound we recommend customer connect an external speaker(Via the 3.5 mm headphone jack or via the 3-In-1 audio&video port).The USB port is only for U-Disk/Hard Disk Device connecting</br>This model is not recommended for PPT or business presentation?? ideal for home theater movies and video game !</br></br>Product Description</br></br><p><b>Brand: </b>UNIC</p> <p><b>Model: </b>ZHG-UC46BG</p> <p><b>Projection Technology: </b>LCD</p> <p><b>Native Resolution: </b>WVGA (800x480)</p> <p><b>Supported Resolution: </b>WXGA (1280x800)???720P (1280x720)???XGA (1024x768)???SVGA (800x600)???WXSGA+ (1366x768)???1080P (1920x1080)</p> <p><b>Operation System: </b>Android 4.1</p> <p><b>Input Voltage(V): </b>100-240</p> <p><b>Brightness(Lumens): </b>1200</p> <p><b>Brightness Range: </b>1000 to 1999 Lumens</p> <p><b>Aspect Ratio: </b>4:3 and 16:9</p> <p><b>Contrast Ratio: </b>800:1</p> <p><b>OSD Languages: </b>Dutch???English???Chinese???Russian???Portuguese???Italian???Spanish???Swedish???German??Greek???French???Czech</p> <p><b>Projection Screen Size (