Wackiest Japanese Inventions You Have To See to Believe 25. Mute Karaoke Microphone For those singing sessions where you are just not sure about your music notes. Prev Next Pages: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41
