... 20KHzSN ratio90dBDistortion<0.05%Video FunctionPlay formatMKV, AVI,RM, RMVB,MP4,MOV,VOB,DAT,FLV,3GP,VP8,RV,WMV,AVS,H ... FunctionFormat SupportedTXT, LRC, PDF, Html, Htm, EPUB, etc Max. capacity20MWI-FI FunctionMain chip setRealtek RT8188, 802.11b/gTransmission rateMax54MbpsTransmission DistanceMax100mWork Frequency2 ...