Remarkable Clear Projection: DLP IntelliBright's advanced algorithms deliver remarkably bright (300 ANSI lumens) and clear (854 x 480 native resolution) projection. Maximum picture size up to 200" which makes any place a theater. Long Playtime and Lamp Life: Built-in 10400mAh battery provides up to 3+ hours playtime on single charge.Long lamp life up to 30000 hours.If you use it 3 hours a day, that's 30 yearsAlso a Bluetooth speaker: Equipped with dual high stereo speaker fidelity, you can turn off the lens and just use the speaker for your music.Advanced Smart Projector: Built-in Android 6.0 OS, run streaming and media apps seamlessly.Display content from Netflix, Youtube and more seamlessly for endless entertainment Projection Parameter Focusing Method: Electric Focus Throw Ratio: 1.3:1 Throw Distance: 0.5M-3M Projection Size: 20inch-120inch screen: 16:9 (original) / 4:3 Keystone correction ale: four-way keystone correction (2D only) + automatic vertical keystone correction HDMI compatibility: 576i, 576p, 480i, 480p, 720p, 1080i, 1080p, 4K Active 3D format: frame encapsulation format / dimension format side by side / top and bottom format Streaming video format: MPEG-1 / 2/4 1080P30fps /H.265 / 4KP60pfs, etc. Streaming audio format: MPEG-1/2/3, etc. Streaming media image format: JPG / BMP / PNG / GIF, etc. System Requirements SOC: Maixing MSD6A358 CPU: Quad-core Cortex-A35 1.5GHz GPU: Mali 400 MP2 OS: Android 6.0 System Memory: 1GB Body Memory 16GB WLAN: 802.11 a/b/g/n (2T2R dual band 2.4G+5G) Bluetooth: BT4.0 special function Office version: KingOS4.0 Office file display: Word, Excel, ppt, pdf Multi-screen interaction: Android, IOS, Windows 3D video playback: 3D SBS, 3D TNB, Blu-ray (support 3D to 2D) System upgrade: support OTA online