Recommended Shotgun Microphones

ECM-B1455UML36-600 — 14mm shotgun microphone ideal for interviews. ECM-B1463UL45-290 — Shotgun mic for live streaming with focused sound pickup.

Unidirectional Electret Microphone Capsules - ECMIC

Unidirectional Microphones

ECMIC provides unidirectional electret microphone capsules designed for focused sound pickup in professional audio applications. Featuring cardioid directional characteristics, high sensitivity, and frequency-boosted response, these microphone capsules are suitable for broadcasting, music systems, communication devices, and OEM audio solutions.

9.7mm Wide Cardioid Electret Condenser Microphone – High SPL for Headset, Conference & Live Voice

Model: ECM-B9750UL45-T3-127
Dimensions: 9.7 × 5 mm
Sensitivity: -45 dB ± 2

9mm Electret Microphone Capsule for Respirator Mask

Model: ECM-EM212U-51
Dimensions: 9.7 × 9 mm
Sensitivity: -51 dB ± 2

Acoustic Guitar Microphone Capsule 10mm

Model: ECM-B1045UL-53
Dimensions: 10 × 4.5 mm
Sensitivity: -53 dB ± 2

Anti-Interference Electret Condenser Microphone Capsule with Korea RF Core

Model: ECM-B1045UBT-Y390-967-2
Dimensions: 10 × 4.5 mm
Sensitivity: -46 dB ± 3

Bluetooth Helmet Microphone Capsule 6mm

Model: ECM-B6027UL50-23702
Dimensions: 6 × 2.7 mm
Sensitivity: -50 dB ± 2

Broadcast Headset Microphone Capsule 6mm

Model: ECM-B6027UL-906
Dimensions: 6 × 2.7 mm
Sensitivity: -35 dB ± 2

Car Cabin Electret Microphone – 9.7 × 5 mm, Overhead Lamp & Infotainment Screen

Model: ECM-B9750UP-45
Dimensions: 9.7 × 5 mm
Sensitivity: -45 dB ± 2

Conference Microphone Array Capsule 14mm

Model: ECM-B1465UL34-24395
Dimensions: 14 × 6.5 mm
Sensitivity: -34 dB ± 2

Dirt Bike Helmet Microphone Capsule

Model: ECM-B6027UL-50
Dimensions: 6 × 2.7 mm
Sensitivity: -50 dB ± 2

Electret Lapel Microphone Capsule 9.7mm

Model: ECM-B9750UL38-714
Dimensions: 9.7 × 5 mm
Sensitivity: -38 dB ± 2

Electret Microphone with 3 Solder Pads

Model: ECM-B1463UL42-291
Dimensions: 14 × 6.3 mm
Sensitivity: -42 dB ± 2

High-Fidelity 9.7mm Wide Cardioid Electret Condenser Microphone – Headset, Conference & Streaming

Model: ECM-B9750UL45-T3-110
Dimensions: 9.7 × 5 mm
Sensitivity: -45 dB ± 2

FAQs

Unidirectional microphones, also called cardioid microphones, focus pickup in the front direction, effectively reducing background noise. They are ideal for walkie-talkies, intercom systems, in-car voice input, conference microphones, and other scenarios that require clear voice capture.

Unidirectional microphones use front and rear sound holes to create a pressure gradient, picking up sound mainly from one direction. Omnidirectional microphones pick up sound evenly from all directions. Unidirectional mics work better in noisy environments, while omnidirectional mics are better for capturing ambient sounds.

ECM-B1455UML36-600 — 14mm shotgun microphone ideal for interviews.
ECM-B1463UL45-290 — Shotgun mic for live streaming with focused sound pickup.

ECM-B9750UP-45, a 9.7mm cardioid microphone designed for car stereo systems, effectively isolates noise, ideal for Bluetooth hands-free and voice control.

25mm cardioid microphones with high SNR, perfect for professional recording and live streaming:

Unidirectional microphones rely on front and rear sound holes to create the pressure gradient needed for directionality. Sealing these holes completely (to achieve IP67 waterproofing) would impair their function.
For more details, see: Waterproof Principles for Omnidirectional and Unidirectional Microphones

Unidirectional Microphones

Unidirectional Electret Microphone Capsules

FAQs

Uses of Unidirectional Microphones

Difference Between Unidirectional and Omnidirectional Microphones

Recommended Shotgun Microphones

Car Use Unidirectional Microphones

High Signal-to-Noise Ratio Unidirectional Microphones

Why Unidirectional Microphones Can't Be IP67 Waterproof

Develop Your Unidirectional Microphone Applications