Model Number:SM4 Android System:Android 5.1 Display Technology:DLP Build-in Battery:N.A Bulid- in Speaker:yes (2W2) Miracast /Airplay:Yes Products Dimension: 19.2 x 14 x 5.8cm 7.56 x 5.51 x 2.28inches Projector Net Weight:0.69kg Brightness:700ANSI Lumens Resolution:Native 1280 x 800,4K,2205P Support Contrast:20000:1 Projection Distance:0.25-5Meters Projection Image Size:10-350nches Aspect Ratio:16:9 /16:10 Lamp:LED Lamp life:more than 50000hours Focus Mode:Manual Build-in memory:1G/16G WIFI:Dual 2.4G/5.8G WIFI Bluetooth:Bluetooth 4.0 tripod hole:YES (at the bottom) With Touch PanelYES(Glass touch panel) With Front StandN.A Keystone Correction:Auto Correction (vertical ±40 degrees) Certificate:CE/FCC Interface / Input :VGA1;SPDIF1;AV1; 3.5mm Audio Output1;); USB2 (USB2.0+USB 3.0);TF Card1;HDMI2(MHL1) Color:Silver, Black,Customized Single Unit Package: 2.5kgs /3028.57.5cm Certificate:CE,rosh Warranty:1 year Features of our Handhold LED Dlp Smart Projector SM4: *Supports Bluetooth, Android and IOS mobile phone / tablet, game machine, DVD and other media equipments *With easy wireless screen function, perfectly applied to business office, home theater and intelligent interactive system *2.4G/5.0G dual-band Wi-Fi makes signal stronger and more stable, rich color saturation with high resolution and brilliant image *DLP technology (from Texas instruments) has better colors and rich images *With built-in precise DMD digital lings processing chip and wide color gamut RGB primary colors LED, no radiation, no harm to the eyes *Native 1280 x 800,4K 2205P Ultra-high clear *support 3D,enjpy home theater *Two parts designed, easy for parting and taking, bottom has power bank function for charging *above 50K hours of life, energy-saving design *Support Airply and miracast Our Handhold LED Dlp Smart Projector SM4 is suitable for: 1.presentation tool. study tool for school students for presentation in class,and also for office meeting,wireless connect the mobile phone,tablet pc,Ipad,Netbook,Pc 2.home theatre big screen movie watching,TV,video game playing. 3. Entertainments Travel,camping outside,party in your garden etc entertainments. 4. Holiday season gift promoting