This very small mini microphone can be affixed to your monitor or computer case or used as a tie clip microphone Specification Uses a cardiod condenser element Frequency response 20 Hz -16 Khz Impedance 2 k Ohm This very small mini microphone can be affixed to your monitor or computer case or used as a tie clip microphone Specification Uses a cardiod condenser element Frequency response 20 Hz -16 Khz Impedance 2 k Ohm