5 in 1 wireless headphone: 1,Wireless headphone 2,FM radio 3,Wireless monitoring 4,Microphone for net chat Portable 5 in 1 wireless blutooth headphone1,Works freely with PC,MP3,TV,MD,DVD etc2,High Sensitivity, interference resistance, strong signal, outstanding performance, effective range over 8m3,Reception beyond obstacle of wall. Bass speaker for great enjoyment Hi-Fi for beautiful sound 1, FM ...