"Portable Mini LED Projector. Enhance your entertainment experience with YG300 for movies, TV, gaming, and music. When connect with smart phones, a lightning to HDMI adapter/a MHL cable or Wifi Display Dongle is needed (not included). When connect with computer, a HDMI cable is needed (not included). There is no built-in battery in the mini projector. Create Your Own Entertainment Center Full format video player: MP4, RMVB, AVI, RM, MKV, etc. Support multi-media (music, pic, video, txt).Compact size, big wisdom: Its size is the same as a smart phone, but it has many interfaces. New generation LED light, power consumption is 10-24w. Environmental protection & energy-saving, more than 20000 hours' lifetime, harmless to eyes. Good assistant for children education at home, also an attractive toy for kids. Specification ? Brightness: 600 lumens. ? Contrast: 800:1. ? Native Resolution: 320*240 Support Resolution: 1280*800. ? Operation Mode: Manual operation. ? Projector distance: 0.8 to 2 mtr. ? Screen size: 24-60 inches. ? Aspect ratio: 4:3/16:9. ? Color Reproduction: 16.7k. ? Input: USB/micro SD/HDMI/AV. ? Speaker:8 ohms 1w. ? Imaging Tech: TFT LCD. ? Unit size: 12.6*8.6*4.8 cm(4.7*3.4*1.9inches). ? Projector ratio:1.6:1.?. Hightlights. Environmental protection & energy saving, more than 20000 hours' lifetime, harmless to eyes. Can project 24-60 inches screen, create your own home entertainment center indoor or outdoor. Portable size like a smart phone suitable for indoors and outdoors, can receive electrical power from a 5V-2A power bank."