... One system with competitiv price,Stable sound KOD-100 HARD DRIVE Wireless Karaoke Microphone System is based on newest technolgy, ... combines wireless microphone,karaoke jukebox, hard disk player, mini SD card, MP4,MP3 player,USB, internet etc all in one ... French, Hindi, Indonesian, Italian, Latin Specifications: 1) Operation temperature: -20 ~ 50°2)Voice frequency range: <±5dB ;3) Frequency Stability: ...