High-level Configuration: Built-in Android System and Speaker, a stable OS and DLP technology is available. Equipped with Mstar 3D decoder chip, 320X240 native resolution, maximum support resolution is 1920x1080, LED lamp, amazing 3D effect. Panel Key Instruction: Indicator light: it is finished the charging or standby status when it keeps red, charging when it flashes red, working when it keeps green. Power: Start it when press key on the standby, swith off it when press key on the working. OK: Press "OK" button to confirm/enter/play. Left/Right: Press them to choose the "previous/next; up/down" in the menu. Mode: Press it in short seconds to choose sources of Music/Movie/Photo/Txt; press it in long seconds to change the USB / SD card input. Return: Back operation or exit the process, these progress is the main key to set the item. Intuitive Interface/Compact Design: No larger than an iPad mini, lightweight. Easy to set up and enjoy with whole family right away Touch Control is displayed on the top. Connect mouse to USB port or AV. When not in use, wont take up much space. Update Reminder: The batteries for remote control won't be included in the package, because we're informed that shipping AAA batteries is dangerous. Please buy the AAA batteries separately. Thanks for your understanding. Multi-screen Sharing: While the connectivity options allow LCD Projector to be used with tablets, notebooks, smartphone and PC, your business life will be convenient and professional, you can enjoy a simple and comfortable environment. Sale Service: If you have any problem about the product, please contact with our customer service, customer service will response your any problems within 24hrs. Main Material: Plastic, Electronic Parts; Consumption: 15W(max); Contrast Ratio: 1000:1; Native Resolution: 320x240; Max Resolution: 1920x1080; Lamp Type: LED; Life Hours: 20000 hours; Input Voltage: 12V 5A; Focus: Manual; Lens: Glasses; Projection Size: 25-80 inch; Distance: 0.9-2.6m / 2.95-8.53Ft; Net Weight: 270g / 9.52oz; Aspect Ratio: 16:9 / 4:3; Speaker: 8? 1W Machine Size: 12.3 x 8.6 x 5.6cm / 4.84" x 3.38" x 2.21" (L * W * H); Input: AV, USB, TF Card, 5V 2A; Output: Earphone; System: Multimedia. Battery: 2 x AAA batteries(No include); Package Include: 1 x Mini LED Projector, 1 x Remote-controller, 1 x manual.