[Stable Android System]: CANGSIKI Android Smart Projector equipped with stable Android 6.0 operating system and eight-core processor, you can download thousands of APPS (videos, games, Excel, PowerPoint, etc.) . RAM/ROM: 2G/16GB + Micro SD slot (supports up to 32G Micro SD/TF card). Built-in 4W stereo speakers or two stereo speakers connected to Bluetooth speakers can give you a perfect audio-visual feast. The projector can also be operated with mouse and keyboard. [Multi-screen Sharing]: The projector has USB / HDMI / WiFi / Bluetooth connection. Airplay/E-share APP can share smart phone resources through the big screen. Although the connection option allows the CANGSIKI mini projector to be used with tablets, laptops, smartphones and PCs, your business life will become convenient and professional. [Large-capacity battery]: 12000mAh battery, 20000 hours lamp life, and light weight: Using 12000mA battery, the projector can fully play two hours of movies. Even if you watch two two-hour movies a day, the lamp life reaches 15,000 hours, and the lamp of this projector can last more than 10 years. It weighs only 1.94 pounds. [High Quality and Guarantee]: This outdoor/indoor floodlight LED light displays natural and rich colors, which is very good for your eyes protection, especially suitable for children and the elderly. Full 1 Year Manufacturer's Warranty The D8S projector can display true 3D content from almost any 3D source, including 3D Blu-ray players, 3D streaming and the latest generation of game consoles. Native 1080p Full HD and 4K image quality, with 220 high-brightness ANSI lumens and 400:1 contrast ratio. Screen size range: 40 inches to 3.3 feet; 300 inches at 25 feet. The projection distance is 1 meter to 8 meters. The throw ratio is 1.2:1 1. Optical specification Style: DLP Display chip: 0.3 720P DMD+RGBLED Resolution: 1280*800 (WXGA) Brightness: 3500 lumens (220 ANSI lumens) Contrast ratio: 400: 1 (ANSI) Throw ratio: 1.2:1 Throw distance: 1m-8m Throw size: 40-300 inch Screen ratio: 4:3/16:9 Focus: manual focus Keystone correction : automatic correction (vertical: 40 degrees) Brightness uniformity: 90% Projection method: desktop, front ceiling or rear ceiling 2. Hardware specifications CPU / GPU: RK3368 / Octa-core 64-bit Cortex-A53, clocked at 1.5GHz. PowerVR G6110 GPU supports OpenGL ES 1.1/2.0/3.1, OpenCL, DirectX9.3 Memory: 2G DDR3 16G eMMC WIFI: 802.11 b/g/n 2.4G/5G Speaker: 2*3W (speaker high sensitivity) Interface: 1 * HDMI input, 2 * USB input, 1 * headphone output, 1 * 5V DC input 3. Software specifications. System: Android 6.0.1 Languages: English/German/Chinese/French/Spanish/Japanese/Korean/Portuguese/Vietnamese/Thai/Italian Office: Word, Excel, PPT, PDF Bluetooth: 4.0 (support keyboard/mouse/ audio output) 3D: support Picture format: JPG, JPG, BMP, GIF, PNG Audio format: MP1/MP2/MP3, WMA, WAV, APE, OGG, OGA, FLAC, AAC, M4A Video format: DAT, MPG , TS, AVI, MKV, MP4, MOV, RM, RMVB, WMV, ASF