Sennheiser Momentum 4 Wireless Left FF ANC Microphone Board OEM Original Replacement Parts

This is a genuine OEM left feed-forward (FF) ANC microphone board pulled from a Sennheiser Momentum 4 Wireless headphone. This is the outer-facing ANC microphone board that captures external ambient noise for the active noise cancellation system. If your Momentum 4 has weak, inconsistent, or non-functional ANC on the left side, this is the exact original board needed to restore full noise cancellation performance.

• Brand: Sennheiser (OEM Original)
• Condition: Grade A – Excellent
• Fits Models: Sennheiser Momentum 4 Wireless

This is a genuine pulled part, tested and fully functional.

Key Features:

• OEM original left feed-forward ANC microphone board
• Restores active noise cancellation performance on the left side
• Part markings: 2022500083400, L FF
• Connection pads include FF-OUT+, FF-OUT-, 3V_MIC and AMIC-Vdd
• Exact fit with original mounting points and connector layout
• Tested and verified fully functional before removal

What's Included:

• 1x OEM Sennheiser Momentum 4 Wireless Left FF ANC Microphone Board

This repair requires full headphone disassembly and soldering. Advanced skill level required. Professional installation is strongly recommended.

If you prefer not to repair it yourself, we also offer a mail-in repair service: https://www.joesge.com/pages/repair-service-headphones-sennheiser