Unidirectional Microphones

Our cardioid ECM microphone capsules are frequency-boosted to enhance voice and instrument clarity. With up to 83dB SNR, they deliver focused sound pickup, reducing background noise. Ideal for professional applications such as broadcasting, music systems, and OEM integration into pro audio systems.

Our Process

1. Inquiry

Send us your product specifications and requirements.

2. Quotation

We’ll provide a product recommendation and a detailed quote.

3. Sampling

We create samples based on your needs for approval.

4. Production

After approval, we begin production and arrange shipping.

Ready to Get Started?

Contact us today to discuss your project and receive a free quote.

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Directionality:

Omni-DirectionalUni-DirectionalBi-Directional

Diameter (Ø):

3mm4mm5.8mm6mm8mm9.7mm10mm14mm16mm25mm

Termination:

Surface MountPin TypeSolder Pads3 Solder PadsWire LeadsWire ConnectorSolder TabsWithout FET
49-60 of 64 Products
9mm Electret Microphone Capsule for Respirator Mask

9mm Electret Microphone Capsule for Respirator Mask

  • Model: ECM-EM212U-51
  • Dimensions: 9.7 × 9 mm
  • Sensitivity: -51dB±2
Acoustic Guitar Microphone Capsule 10mm

Acoustic Guitar Microphone Capsule 10mm

  • Model: ECM-B1045UL-53
  • Dimensions: 10 × 4.5 mm
  • Sensitivity: -53dB±2
Bluetooth Helmet Microphone Capsule 6mm

Bluetooth Helmet Microphone Capsule 6mm

  • Model: ECM-B6027UL50-23702
  • Dimensions: 6 × 2.7 mm
  • Sensitivity: -50dB±2
Broadcast Headset Microphone Capsule 6mm

Broadcast Headset Microphone Capsule 6mm

  • Model: ECM-B6027UL-906
  • Dimensions: 6 × 2.7 mm
  • Sensitivity: -35dB±2
Conference Microphone Array Capsule 14mm

Conference Microphone Array Capsule 14mm

  • Model: ECM-B1465UL34-24395
  • Dimensions: 14 × 6.5 mm
  • Sensitivity: -34dB±2
Dirt Bike Helmet Microphone Capsule

Dirt Bike Helmet Microphone Capsule

  • Model: ECM-B6027UL-50
  • Dimensions: 6 × 2.7 mm
  • Sensitivity: -50dB±2
Electret Lapel Microphone Capsule 9.7mm

Electret Lapel Microphone Capsule 9.7mm

  • Model: ECM-B9750UL38-714
  • Dimensions: 9.7 × 5 mm
  • Sensitivity: -38dB±2
Electret Microphone Insert without FET

Electret Microphone Insert without FET

  • Model: ECM-B1660UL46-319
  • Dimensions: 16 × 6 mm
  • Sensitivity: -46dB±3
Electret Microphone with 3 Solder Pads

Electret Microphone with 3 Solder Pads

  • Model: ECM-B1463UL42-291
  • Dimensions: 14 × 6.3 mm
  • Sensitivity: -42dB±2
High-Performance Uni Electret Mic Capsule for Hi-Fi Audio Systems

High-Performance Uni Electret Mic Capsule for Hi-Fi Audio Systems

  • Model: ECM-B1045UML50-25082
  • Dimensions: 10 × 4.5 mm
  • Sensitivity: -50dB±2
Large Diaphragm Electret Microphone Cartridge without FET

Large Diaphragm Electret Microphone Cartridge without FET

  • Model: ECM-B250U
  • Dimensions: 25 × 6.3 mm
  • Sensitivity: -40dB±2
Live Broadcast Microphone Capsule 25mm

Live Broadcast Microphone Capsule 25mm

  • Model: ECM-B2573UL33-23221
  • Dimensions: 25 × 7.3 mm
  • Sensitivity: -33dB±2
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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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