... . Projection Distance: 3-10m8. Image ratio: 16:99. Using LED technology, which is environment-friendly, saving energy,without radiation.10 ... which can play audio files independently.12.With USB interface,computer interface,DVD Port,AV .VGA port, connecting external speaker.13 ... project high jump0.3-5meter TV distortion degree≤±3% LED light life50000hour video inputAVVGA.CVBSNTSC/PAL audio input1.2W ...