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Ships within 48 hours · Estimated delivery Jul 6 - Jul 11
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Description
Sennheiser Headmic Boom Arm BK, For Headmic 4, BlackSennheiser HM 4 Boom Arm BK Black The Sennheiser HM 4 Boom Arm BK (Article Number: 700091) is a premium, modular replacement microphone boom component designed exclusively for the flagship Sennheiser Headmic 4 headset system. This individual boom arm acts as an OEM service part or customization element, allowing audio technicians and performers to swap out a broken capsule arm or match a specific on camera colorway without needing to repurchase an
Sennheiser HM 4 Boom Arm BK - Black
The Sennheiser HM 4 Boom Arm BK (Article Number: 700091) is a premium, modular replacement microphone boom component designed exclusively for the flagship Sennheiser Headmic 4 headset system. This individual boom arm acts as an OEM service part or customization element, allowing audio technicians and performers to swap out a broken capsule arm or match a specific on-camera colorway without needing to repurchase an entire headworn frame assembly.
The Black version features a sleek, low-profile matte black finish designed to blend cleanly against dark hair, stage clothing, or under theatrical lighting.
Key Architectural and Engineering Attributes
Twist-Proof Structural Integrity: The boom arm uses an ultra-slim, high-tensile metal alloy structure measuring just 1.1 mm in diameter. Despite its microscopic profile, the mounting node features a twist-proof architectural interlock that slots into the main neckband, ensuring the microphone stays in position even during vigorous theatrical movements or live sports coverage.
Dual-Side Ambidextrous Mounting: The attachment mechanism is entirely symmetrical. Depending on a speaker's preference, facial hair considerations, or profile-camera staging, the boom arm can be mounted to either the left or right side of the main headpiece frame in seconds.
Acoustic Isolation Alignment: The boom arm is structurally optimized to hold the high-end Sennheiser KE 4 cardioid microphone capsule at a precise mechanical offset from the cheekbone, maintaining an optimized distance from the user's lips to capture clear sound while reducing plosive breath pops.
Technical Specifications Matrix
| Feature Parameter | Component Specification Profile |
| Model Reference Name | HM 4 BOOM ARM BK |
| Official Article Number | 700091 |
| Master System Compatibility | Sennheiser Headmic 4 Series Only |
| Structural Boom Diameter | 1.1 mm |
| Total Structural Length | 378 mm |
| Component Profile Width | 135 mm |
| Hardware Finish Tint | Matte Black |
| Net Component Weight | Micro-lightweight at approx. 8 grams |
Installation and Hardware Care Guidance
Avoid Bending the Joint: While the wire boom arm can be gently shaped to trace the exact contour of a performer's jawline, never bend the component directly at the structural link point where it locks into the neckband. Continual stress at the mechanical socket can weaken the locking tracks and compromise the twist-proof stabilization mechanism.
Disconnecting with Precision: When swapping out the boom arm from the main frame, apply straight, axial pressure to unclip the segment. Avoid twisting or rocking the connection housing laterally, as this can wear down the fine alignment tabs over time and introduce a slight physical looseness into the headset assembly.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy