Unidirectional Microphones

Cardioid ECM microphone capsules with frequency-boosted design, up to 83dB SNR, delivering focused sound pickup for clear voice and instrument clarity. Ideal for broadcasting, music systems, and professional OEM applications.

How to Get Started

1. Define Requirements

Share application, specifications, and use scenario

2. Engineering Review

Technical evaluation and model recommendation

3. Sample Evaluation

Engineering samples provided for application testing

4. Mass Production

Production after validation and specification confirmation

Directionality:
Omni-DirectionalUni-DirectionalBi-Directional
Diameter (Ø):
3mm4mm5.8mm6mm8mm9.7mm10mm14mm16mm25mm
Termination:
Surface MountPin TypeSolder Pads3 Solder PadsWire LeadsWire ConnectorSolder TabsWithout FET
37-48 of 71 Products
9.7mm Electret Condenser Microphone Element for Lavalier Mics

9.7mm Electret Condenser Microphone Element for Lavalier Mics

  • Model: ECM-B9750UL-SBN-44
  • Dimensions: 9.7 × 5 mm
  • Sensitivity: -44 dB ± 3
9.7mm Electret Microphone Capsule for Video Conferencing

9.7mm Electret Microphone Capsule for Video Conferencing

  • Model: ECM-B9745UL-35
  • Dimensions: 9.7 × 4.5 mm
  • Sensitivity: -35 dB ± 2
9.7mm Lavalier Microphone Capsule for Conference

9.7mm Lavalier Microphone Capsule for Conference

  • Model: ECM-921U
  • Dimensions: 9.7 × 5 mm
  • Sensitivity: -44 dB ± 2
9.7mm Unidirectional Electret Condenser Microphone Element

9.7mm Unidirectional Electret Condenser Microphone Element

  • Model: ECM-B9750UL38-SD1033
  • Dimensions: 9.7 × 5 mm
  • Sensitivity: -38 dB ± 2
9.7mm Unidirectional Electret Condenser Microphone Element for Wireless Conference

9.7mm Unidirectional Electret Condenser Microphone Element for Wireless Conference

  • Model: ECM-770
  • Dimensions: 9.7 × 5 mm
  • Sensitivity: -38 dB ± 2
9.7mm Unidirectional Electret Condenser Microphone Insert for Voice Amplifier

9.7mm Unidirectional Electret Condenser Microphone Insert for Voice Amplifier

  • Model: ECM-F9750UL-51
  • Dimensions: 9.7 × 5 mm
  • Sensitivity: -51 dB ± 2
9.7mm Unidirectional Electret Mic Capsule for Karaoke Microphone

9.7mm Unidirectional Electret Mic Capsule for Karaoke Microphone

  • Model: ECM-F9750UL-50
  • Dimensions: 9.7 × 5 mm
  • Sensitivity: -50 dB ± 1
9.7mm Unidirectional Electret Mic Element for Headset Microphones

9.7mm Unidirectional Electret Mic Element for Headset Microphones

  • Model: ECM-F9767UL-44
  • Dimensions: 9.7 × 6.7 mm
  • Sensitivity: -44 dB ± 2
9.7mm Unidirectional Electret Microphone Element for Gooseneck

9.7mm Unidirectional Electret Microphone Element for Gooseneck

  • Model: ECM-B9750UL38-630
  • Dimensions: 9.7 × 5 mm
  • Sensitivity: -38 dB ± 2
9.7mm Unidirectional Electret Microphone Element for Video Conference

9.7mm Unidirectional Electret Microphone Element for Video Conference

  • Model: ECM-B9745MU-BLC
  • Dimensions: 9.7 × 4.5 mm
  • Sensitivity: -32 dB ± 3
9.7mm Unidirectional Electret Microphone Insert for Motorcycle Helmet

9.7mm Unidirectional Electret Microphone Insert for Motorcycle Helmet

  • Model: ECM-EM212U-45
  • Dimensions: 9.7 × 9 mm
  • Sensitivity: -45 dB ± 2
9.7mm Unidirectional Electret Microphone Insert for Violin Pickup

9.7mm Unidirectional Electret Microphone Insert for Violin Pickup

  • Model: ECM-B9750UL45-201
  • Dimensions: 9.7 × 5 mm
  • Sensitivity: -45 dB ± 1
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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-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
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