This optional headset microphone can replace the lapel microphone in the Sweet Sixteen Lapel Microphone System or the LD-W100 series microphone system.
Headset Microphone for WS100BP Belt Pack • Uni-directional Electret Condenser Headset Microphone
• Impedance < 680 Ohms
• Frequency range : 20Hz – 20 KHz
• Sensitivity : -44±2dB (at 1 KHz)