... colors 120% NTSC Uniformity ≥70% Contrast ratio 4000:1 WIFI Support Keystone ±40 Image size(diagonal) Maximum ... Lamp RGB LED(Life of over 30,000 hours) Audio Two 0.5-watt speaker,headphone-out Operating temperature 0 ... CARD; MINI USB ;USB; AV IN; Φ3.5mm Audio out File compatibility Text: txt, pdf, doc, ppt, ... vob, dat, wmv, asf, ram Photo: jpeg, bmp, png Audio: mp3, mp2, aac, amr, ape, wma, awb, flac, ...