HD-HYNUDAL K8H Chinese Home Karaoke Player Singing Machine KTV Equipment System with 50K Songs + 2pcs Wired Condenser Microphones Up to 50000 high definition KTV karaoke songs and intelligent selecting songs system Best Singing player for a party. The perfectable and warm gift for your family, friends High speed double way USB 2.0 host for making sure stable data transfers. Fitting for installing 3.5" SATA hard disk.video output:Composite RCA,componet video (YPbPr) and HDMI Audio output:Analogy stereo(double channels),SPDIF digital audio(COAXIAL,OPTICAL)