Shure MX185 Cardioid Lavalier Microphone
By Brian Long

Introduction
The Shure MX185 Lavalier Microphone is a professional-grade cardioid condenser microphone designed for focused audio capture and minimal background noise. Its discreet and lightweight design makes it ideal for corporate presentations, lecture halls, and broadcast applications where precise sound pickup is required.
With CommShield® technology for RF interference protection and interchangeable cartridge compatibility, the MX185 delivers consistent, high-quality audio in demanding professional environments.
Product Gallery
Key Features
- Cardioid Pickup Pattern: Offers focused sound capture while minimizing ambient noise.
- CommShield® Technology: Guards against RF interference from digital and mobile devices.
- Wide Frequency Response: Captures clear and natural audio across the spectrum (50 Hz – 17 kHz).
- Discreet and Lightweight: Compact design suitable for professional and broadcast use.
- Interchangeable Cartridges: Compatible with omnidirectional (R183B) and supercardioid (R184B) cartridges for added versatility.
- Rotatable Tie-Clip: Allows flexible placement with 90° pivot options.
- Supplied Accessories: Includes tie clip, dual tie clip, foam windscreen, and snap-fit windscreen.
Applications
The Shure MX185 Lavalier Microphone is ideal for:
- Corporate Presentations: Ensures clear and focused sound for professional meetings and speeches.
- Lecture Halls: Provides consistent, high-quality audio capture for educators and lecturers.
- Broadcast and Recording: Delivers professional-grade sound isolation for live and recorded media.
Specifications
Specifications
| Feature | Value |
|---|---|
| Microphone Type | Electret Condenser |
| Polar Pattern | Cardioid |
| Frequency Response | 50 Hz – 17 kHz |
| Sensitivity | -35.0 dBV/Pa (17.8 mV) |
| Maximum SPL | 124.2 dB SPL |
| Equivalent Noise Level | 20.5 dB (A-weighted) |
| Dynamic Range | 96.2 dB |
| Output Impedance | EIA Rated at 150 Ω (180 Ω actual) |
| Power Requirements | 11 to 52 V DC phantom power, 2.0 mA |
| Cable Length | 1.2 meters (4 feet), shielded |
| Connector | TA4F (TQG) |
| Net Weight | 19 grams (0.7 oz.) |
Manuals and Documents
- MX185 Specification Sheet – Detailed specifications for the MX183, MX184, and MX185 Lavalier Microphones.
- Microflex Wired Microphones Specification Sheet – Overview of the entire Microflex Wired lineup.