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

Share your product requirements and specifications.

2. Quotation

We recommend suitable products and provide a detailed quote.

3. Sampling

Samples are prepared according to your needs for approval.

4. Production

After approval, we start production and arrange shipping.

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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