Specifictions: Imaging technology:TFT LCD Physical resolution:320*240 Maximum resolution:1920*1080 Source:LED Focusing:manual operation Projection distance:50-300cm Product size:114*87*50mm/4.48inx3.42inx1.97in Screen aspect ration:16:9/4:3 Input interface:AV, USB, HDMI-compatible, TF 5V-2A Output interface:headset Light:20000 hours Engine power:20W(max) Adapter:12V-2A Operations:Manual/remote control Size:16-100inch Weight:0.26kg Sound:8Ω3W Features: --New DesignShort focus optical lens.Focus at a distance of 50CM . Add image edge distortion correction ,significantly improve the image uniformity --New UI interface , support for multi-format videoaudio , pictures , e-book playback --Lean Manufacturing.High quality process , high grade ABS material ,strict quality control --Built-in miniature speaker.Ultrasonic welding technology , small sizealso has loud effect --Diffuse reflection imagingmakes the eye healthy.Projection unique diffuse reflection imaging principle ,reduce eye stimulation and visual fatigue , so that morecomfortable and healthy watching Package Includeds: --1 x Packing box --1 x Shockproof foam box --1 x T300 projector --1 x Power supply --1 x Remote control --1 x AV wire --1 x User guide