Wireless microphone headset system: Only for Mic Jack, not Aux Jack, otherwise no sound ●Built-in high sensitivity condenser microphone, transmission distance upgrade to 160 Feet (50m) ●Signal Stability●No Delay●No Radiation ●Anti-Howling ●Anti-Jamming ●Constant Frequency ●Clearer Sound Quality. Compatible voice amplifiers, multimedia. It is a...