The 3M Peltor MT53N-12 Boom Assembly is a complete replacement part and can be swapped over with a broken microphone boom assembly in a matter of minutes.
The microphone is an Electret boom assembly suitable for all units with the starting part number of MT53.
MT53 Specifications
| Frequency range | 70–10000 Hz ±6 dB |
| Sensitivity as lip microphone | 15 mV/680 Ω |
| Impedance | > 680 Ω |
| Noise suppression | 15 dB at 1 kHz |
