Android 7.1 DLP Projector with Touch Pad BT4.0 Mini Beamer 4000mAh Battery WIFI Home Theater Projector 

Display Technology: 0.2" DMD+RGB LED 

Brightness: 150 ANSI Lumens

Brightness uniformity: 90%

Resolution:WVGA 854*480

Contrast Ratio: 500:1

Light Source: RGB LED Lamp,Lamp life more than 10000 Hours

Optical Focal Length: 6.5mm

Throw ratio: 1.4:1 

Projection distance : 0.5m to infinite

Aspect ratio: 4:3/16:9/16:10

Keystone: Vertical Auto keystone +/-40 degree

Projection metod: Front Projection

Android Features:

Operation System: Android 7.1.2 OS

CPU: RK3328 Quad-core Cortex-A53,Speed up to 1.5GHz

GPU:Mali-450 MP2 

RAM: DDR3 2GB

ROM:EMMC Flash 16GB

Bluetooth: Bluetooth 4.0

Wireless Technology:802.11b/g/N/ac Wireless LAN

Wired Broadband: Support USB LAN card

Wifi:  2.4G/5G Wifi

Speaker: 4Ohm 3W Hi-Fi Speaker

Input/Output: USB 2.0x1,USB 3.0x1 ,HDMI input x1,TF cardx1, 3.5mm earphone jack x1