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.

16mm Cardioid Electret Microphone Capsule for Streaming

Model: ECM-B16063UL-SFN-03-Y
Dimensions: 16 × 6.3 mm
Sensitivity: -45 dB ± 3

16mm Cardioid Electret Microphone Element for Anchor

Model: ECM-B1655UL44-280
Dimensions: 16 × 5.5 mm
Sensitivity: -44 dB ± 2

16mm Electret Microphone Element for Live Streaming

Model: ECM-B1663UL46-321
Dimensions: 16 × 6.3 mm
Sensitivity: -46 dB ± 2

25mm Cardioid Electret Microphone Cartridge

Model: ECM-B2583UML32-23861
Dimensions: 25 × 8.3 mm
Sensitivity: -32 dB ± 2

25mm Large Diaphragm Electret Microphone Capsule

Model: ECM-B25087UL-45
Dimensions: 25 × 8.7 mm
Sensitivity: -45 dB ± 2

4mm Electret Microphone Insert for Lavalier Mics

Model: ECM-B4015UL-30
Dimensions: 4 × 1.5 mm
Sensitivity: -30 dB ± 2

4mm Gold-Plated Unidirectional Microphone Capsule for Two-Way Radios

Model: ECM-B4015UP40-474
Dimensions: 4 × 1.5 mm
Sensitivity: -40 dB ± 2

4mm Headset Microphone Capsule for Harman Headsets

Model: ECM-B4017UL46-26479
Dimensions: 4 × 1.7 mm
Sensitivity: -46 dB ± 2

6mm Electret Instrument Microphone Capsule with Pins

Model: ECM-B6027UP-47
Dimensions: 6 × 2.7 mm
Sensitivity: -47 dB ± 2

6mm Electret Microphone Capsule for Headset Mics

Model: ECM-B6050UL-B
Dimensions: 6 × 5 mm
Sensitivity: -46 dB ± 2

6mm Unidirectional Microphone Capsule for Lavalier and Conference Mics

Model: ECM-B6027UL29-25674
Dimensions: 6 × 2.7 mm
Sensitivity: -29 dB ± 2

9.7mm Cardioid Dual-Chamber Microphone Capsule for KTV Karaoke

Model: ECM-F9750UL-48
Dimensions: 9.7 × 5 mm
Sensitivity: -48 dB ± 1

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