Replacement Microphone
3M PELTOR Flexible Dynamic Boom Microphone
MT33-05R — For ComTac III / V
OEM replacement flexible boom microphone for the ComTac III and ComTac V platform. Noise-canceling dynamic element with IP68 water and dust resistance. Replaces the legacy MT31 model with 3× improved noise cancellation.
Specifications
🎤18 dB Noise Cancellation — 3× improvement over the legacy MT31 microphone (6 dB). Clear radio transmissions in sustained noise environments.
💧IP68 Waterproof — Sealed dynamic element resists water immersion, dust, and debris. Built for maritime and all-weather operations.
🔧Flexible Boom Design — 180 mm cable length with bendable positioning arm. Holds shape for optimal microphone placement.
🔌2-Pin Nexus Plug — Direct plug-in replacement on the left earcup. No tools or soldering required.
💨Windshield Included — Ships with M171 foam windsock for improved voice clarity in wind.
Compatibility
✓ComTac III / SwatTac III — OEM microphone.
✓ComTac V / SwatTac V — OEM microphone, ships standard on all V-series headsets.
ℹ️Not for ComTac VI/VIII — The VI and VIII platforms use the MT73/1 telescope boom microphone (different connector and mounting).
Specifications
| Part Number |
MT33-05R |
| 3M ID |
70071677093 |
| Type |
Flexible dynamic, noise-canceling |
| Noise Cancellation |
18 dB (measured at 10mm, normalized 0dB at 1kHz) |
| Water/Dust Rating |
IP68 |
| Connector |
2-pin Nexus plug |
| Cable Length |
180 mm |
| Replaces |
MT31 (legacy boom microphone) |
| Includes |
M171 windshield |
3M — St. Paul, MN | PELTOR — Sweden
DISCO32 / PELTOR Authorized Dealer — Aberdeen, NC
