All in one karaoke microphone player,Card reader,USB,Recroder,All in one,along with 3140 songs(optional language) Built-in more than 3000 optional songs (optional ... music but also video backgroundsReserve up to 99 songs Digital LCD display Full karaoke functions: key, tempo, echo and mic ... ,Spanish, Japnese,Russian,Thai,Korean,Hindi,IndoesiaExtra Song Book All In One Karaoke Microphone (MK6+MK-601)