HD-HYNUDAL&reg; K5 Portable Mini 3.5mm Earphone Karaoke Mixer Singing Machine Converter Black + 2pcs Wired Dynamic Microphones This is karaoke converter for Smartphone/Tablet/Smart TV ,Without karaoke software. Your Smartphone/ Tablet should be download and installed a karaoke software by yourself. And connect to this box,you could singing with your friends together with 2mics. It is special for karaoke car Small and portable.Your family could use it Singing in the car when long travel . Lovely&Perfect gift for your family, friends