XM Ecosystem WEMAX L1668FCF 4K ALPD Ultra Short Throw Projector 9000 ANSI LM 200‑240VAU Condition: Item type: Home ProjectorMaterial: ABSColor: As picture shownHost Size: Approx. 420x301x89mm/16.5x11.9x3.5inWeight: Approx. 10300g Product Name: Optical Parameters of Home Projector Display technology: 0.47in DMD Standard resolution: UHD 4K 3840x2160 Refurbish resolution: 60/120HZ Light source technology: for ALPD Center brightness: 250 nit Brightness uniform value: >80% Color gamut: NTSC>80% Center contrast: 4000:1 Projection parameter Throw Ratio (TR): 0.233 Screen size: Suggestion: 80in~150in; Range: 60in~250in System parameters CPU: T968-H Cortex-A53 4 core 1.8GHZ /64 bit GPU: Mail-T830 MP2 For RAM: 2GB DDR3 Built-in storage: 64GB eMMC high-speed flash memory System functions Operating system: for MITV UI System: for Android 6.0 and above WiFi: Dual frequency 2.4/5GHz, support 802.11 a/b/g/n/ac Bluetooth: Bluetooth 4.0 / BLE low power consumption Automatic: energy saving, eye protection Switch mode: power on, power off, screen off Dynamic image: Support HDR10 Keystone correction: 8-point keystone correction Lens focusing: electric focusing Dust cover: glass dust cover Image support: three dimensional Expansion support: external USB stereo surround sound Speaker speaker: full frequency x2+high frequency x2 (~30W) Bluetooth remote control: Bluetooth, voice Back-end interface: Ethernet port x1, S/PDIFx1 (optical fiber), Audio outx1 (coaxial S/PDIF), AV 3.5x1, USB3.0x1, HDMI2.0/ARCx1, HDMI2.0x2 Side interface: USB2.0x1 Remote control battery: 2xAAA battery (not included)