Sennheiser Headmic 4-EW, Black, Cardioid, 3-Pin Connector, 1.6m Cable

Sennheiser Headmic 4 Condenser Neckband Microphone (Black)

The Sennheiser Headmic 4 is a premier, ultra-lightweight permanently polarized condenser neckband microphone engineered for elite vocal and speech applications. It is widely used by corporate presenters, broadcast journalists, theatrical actors, and high-energy live performers who demand studio-grade vocal articulation combined with a highly stable, visually minimalist form factor.

Connector Note: Your description contains a slight cross-reference regarding terminations. Sennheiser splits this modular headset into two distinct versions based on your wireless bodypack hardware:

1. Headmic 4 (Black EW) — Article No. 509495: Outfitted with a 3.5 mm locking TRS jack designed for evolution wireless (ew G3/G4), EW-D, and EW-DX bodypacks.

2. Headmic 4 (Black 3-Pin) — Article No. 509498: Outfitted with a professional 3-pin LEMO connector designed for high-tier broadcast transmitters like the SK 5212, SK 6000, and SK 9000.

Aside from the detachable cable termination, both variations share identical acoustic capsules, chassis specs, and mechanical properties.

Key Architectural and Acoustic Attributes

• KE 4 Cardioid Capsule Calibration: Equipped with Sennheiser's premium miniature KE 4 cardioid capsule, the headset offers high gain-before-feedback. By ignoring off-axis ambient sound from the rear and sides, it isolates the presenter's voice cleanly—even when standing directly in front of loud public address (PA) wedges or side-fills.

• Twist-Proof Dual-Side Boom Arm: The ultra-slim ($\varnothing\ 1.1\text{ mm}$) microphone boom arm is completely twist-proof and can be structurally detached and re-mounted on either the left or right side of the frame, depending on user preference or camera profile angles.

• Fully Modular, Adjustable Architecture: The high-tensile, lightweight metal neckband frame can be adjusted smoothly to contour to varying head dimensions. Its modular format ensures that the cable, capsule boom, clothing clips, and ear hooks are easily interchangeable for field maintenance.

• High-SPL Safeguards: The capsule tracks audio cleanly across a full wideband dynamic range, managing extreme performance peaks up to 143dB SPL without digital clipping or internal diaphragm saturation.

Technical Specifications Matrix

In the Box: Component Bundle Inventory

• 1 x Headmic 4 Neckband Microphone (Black)

• 1 x Connection Cable (1.6m Length; either 3.5mm EW Jack or 3-Pin LEMO based on choice)

• 1 x MZW 44 Windscreen (Foam pop filter for plosive mitigation)

• 1 x Protective Soft Case (For secure travel storage and component management)

• 1 x Quick Start Setup Guide

Fitting and Field Application Advice

Optimal Proximity Placement: Slide the adjustable neckband on so it rests securely around the back of the skull. Bend the flexible boom arm gently so the KE 4 capsule sits roughly 2 to 3 cm from the corner of the mouth. Do not place the microphone capsule directly dead-center in front of the lips; offsetting it prevents breath bursts ("P" and "B" plosives) from hitting the element directly.

Keep Stress Off the Connection: The 1.6-meter cable is built to handle active movement, but it should never be pulled taut. Always leave a tiny amount of loose slack loop near the base of the neckband before routing the wire down the talent’s wardrobe to their bodypack transmitter. Secure the cable with the included clothing clip to absorb sudden body tugs and minimize cable handling noise.