GP70UP LED projector comes with Android 4.4 system, quad-core 1.5G CPU, 1G DDR3, 8G Nand flash</br>GP70UP delivers clear images in low light conditions with 800 lumens, physical resolution 800 x 480 pixels</br>You can also connect an external speaker or audio system using 3.5 mm connector</br>Wireless function supports miracast protocol and DLNA, transmitting audio, video, picture of smart phones, computer and laptop to the big screen</br>This projector is not recommended for PPT or business presentation, fit for home theater movies and video game, recommend using in dark environment</br></br>Product Description</br></br>Focus adjustment: Adjust the keystone to make the image fit, then rotate the focus ring slowly (right & left side), at the same time, look at the image projected carefully. When the image & text are clear, this is the best situation of the lens for focus. Features – 1. Android 4.4.2, Wi-Fi & Bluetooth-time to enjoy: Supports app download & install, connect your iPhone/iPad/Android device wireless, connect Bluetooth speaker to have perfect sound. 2. Enhanced LED technology, 20% brighter than ordinary LED: Erisan adopted the lasted upgraded LED technology, provides more brightness than ordinary LED projector, enjoy sharp image in dark room. 3. Large screen experience-relax your eyes from TV: Supports projection size from 37 to 130 inches, best projection distance is about 8 feet with image size 80 inches. 4. Keystone function: Adjust the image manually with keystone, avoid image distortion. 5. Warm tips: Not recommended for PPT or business presentation, ideal for home theater movies and video game, recommend using in dark environment. Specifications – 1. System: Android 4.4.2. 2. Android CPU: Quad-core 1.5g (Cortex-A5). 3. GPU power: Eight-cores. 4. Memory: 1 GB DDRIII (256m x 16 bit x 2), flash memory: 8 GB (Nand-flash, EMMC). 5. Wi-Fi/Bluetooth: 802.11 B/G/N, 2.4 GHZ & 5 GHZ + Bluetooth 4.0 (AP6330). 6. Native resolution: 800 x 480. 7. Lamp life: 20000 hours. 8. Projection source: AV, HDMI, VGA, USB, memory SD card, ATV. Built-in 2.4g & 5g dual band Wi-Fi and Bluetooth 4.0 make home entertainment easy. With this simple beamer, you can enjoy movies, videos, pictures and more. Optical resolution up to 1080p and dynamic contrast ratio up to 10,000: 1 ensure best visual effect. GP70UP is equipped with all kinds of interfaces, including two for HDMI ports, one VGA port (for computers), one AV (conventional audio & video) port & standard USB port, one SD card-ready slot, easy to connect with external devices.</br><br/>http://www.amazon.com/gp/product/B01M5H1U5Q