Optical Parameters 1. Maximum image size is up to 300 inches 2. 350 ANSI lumens brightness 3. Very suitable for entertainment, streaming video content via Miracast, YouTube, Airplay, Netflix 4. 7800mAh rechargeable battery built-in, 1.5 hours of playtime 5. 40 degree keystone correction to align the screen with the projected image to achieve the same viewing angle 6. Over 20,000 hours of lamp life, to ensure normal use for more than 5 years without maintenance or lamp replacement Projection parameter Display technology: TI DLP Light source: RGB LED Operating system: Android 6.0 OS Processor: Quad core WI-FI: 2.4G + 5G dual frequency Connection with PC and mobile phone: HDMI-IN Wireless connection with mobile phone: Airplay / DLNA / Bluetooth duplication: BT4.0 Memory: 16 GB Brightness: ANSI Lumens: 350nsi Lumens Native resolution: 1280 x 800 , support for 4K Contrast ratio: 1000:1 LED light source: 30,000 hours Throw ratio: 1.2:1: Screen size (diagonal) 150" External storage: USB, Micro SD Color temperature: 7500-9000 Kelvin Built-in speaker: 2.2 W 3D/2D to 3D conversion 3D: 3D/3D to 2D Focus: auto/electric Keystone correction: vertical and horizontal correction (automatic) Projection mode: front/rear/ceiling mode (automatic ) Source search: automatic/manual Output: 3.5mm headphone audio output jack Input ports: HDMI, RJ45, USB3.0 and 2.0, micro SD Supported video formats: H.264, H.263 , VC-1, MPEG-1/2/4, DIVX-3/4/5/6, XVID, WMV7/8, VP8, VP6, AVS Supported audio formats: MP3, WMA, OGG, FLAC, APE, ATRA Supported Photo Formats: JPEG, GIF, BMP System Requirements SOC: Mstar MSD6A358 CPU: Cortex-A35 Quad Core 1.5GHz GPU: Mali 400 MP2 OS: Android 6.0 System Memory: 2GB Physical Memory 16 GB 802.11 a/b/g/N (2.4G+5g dual-band 2T2R) Bluetooth: BT4.0 input interface DC IN * 1 HDMI 2.0 * 1 USB 2.0 * 1 Micro SD * 1 Output interface Output jack 3.5mm headphone audio Electrical Specifications Power Supply: 19v 2.1A Battery 11.1v 3250ma/h Power Consumption (W) 26W Noise