Headset Earset Microphone for Shure BLX1 Wireless Bodypack Transmitter Beige
Compatible Transmitter Models (TA4F  4 pin Jack) - BLX1, BLXR1, GLX1, GLXD1, PG1, PGX1, SLX1, ULX1, L1, L11, LX1, SC1, U1, UC1, UT1, T1

Specification
Capsule:Condenser microphone capsule                          
Mic diameter:  Φ3.0*1.5 mm
Polar pattern: Omnidirectional  
Sensitivity:-45dB±2dB                                       
Frequency Range: 20-20KHz
Output Impedance: ≤2.2kΩ                           
Standard Operation Voltage: 2.0V-10V.DC       
SNR: >63dB  
Wire: 1.2m

Package include:
1 x headset mic with windscreen