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Home/Products/Harmonai CM-504S Professional Speech Microphone — Dual-Package Back-Electret Condenser Mic Set for Clear Conference & Broadcast Audio
CM-504S image 1

Harmonai CM-504S Professional Speech Microphone — Dual-Package Back-Electret Condenser Mic Set for Clear Conference & Broadcast Audio

The Harmonai CM-504S is a professional speech microphone featuring a back-electret condenser capsule, cardioid polar pattern, 40Hz–16kHz frequency response, and 70dB SNR. The dual-...

$328.82
Model
To be confirmed
Category
Professional Speech Microphones
Images
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ready
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Supplier

广州籁音电子有限公司

Generated onJune 15, 2026
CM-504S image 1

Product Brief

Harmonai CM-504S Professional Speech Microphone — Dual-Package Back-Electret Condenser Mic Set for Clear Conference & Broadcast Audio

Overview

The Harmonai CM-504S is a professional speech microphone featuring a back-electret condenser capsule, cardioid polar pattern, 40Hz–16kHz frequency response, and 70dB SNR. The dual-...

Price
$328.82
Model
-
Category
Professional Speech Microphones

Specifications

Specifications

ParameterValue
CapsuleBack-electret condenser
Polar PatternCardioid
Frequency Response40Hz — 16kHz
Sensitivity-36dB ± 3dB (1dB = 1V/Pa at 1kHz)
Output Impedance500Ω ± 20% (at 1kHz)
Maximum SPL130dB (T.H.D ≤ 1% at 1kHz)
Signal-to-Noise Ratio70dB (1kHz at 1Pa)
Power Supply48V DC, 2mA
Weight173g
Body DimensionsΦ37 × 220mm
Output ConnectorXLRM 3-pin male XLR
Package ContentsCML-400 microphones × 2, H-230 intercom copper-tone base × 1, S-30 professional windshields × 2, protective carry case × 1
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Service Support

We support project consultation, model recommendation, bulk purchasing and catalog delivery for retail, multipurpose halls, conference rooms and live events.

  • Business hours: Monday to Friday 09:00 - 18:30
  • Inquiry channels: phone / email / website form
  • Tip: share budget, quantity and use scenario in advance
Harmonai CM-504 Professional Speech Microphone — High-Fidelity Audio for Meetings and Presentations

Harmonai CM-504 Professional Speech Microphone — High-Fidelity Audio for Meetings and Presentations

The Harmonai CM-504 is a premium desktop speech microphone engineered for professional speaking, conferences, and lectures. Featuring a back-electret condenser capsule and cardioid polar pattern, it suppresses ambient noise while capturing the speaker’s voice with precision. Includes the H-230 bronze base for stable, elegant placement on any podium or conference table.$290.59
Harmonai CM-503 Professional Speech Microphone

Harmonai CM-503 Professional Speech Microphone

The Harmonai CM-503 is a professional speech microphone featuring a back-electret condenser capsule and cardioid polar pattern, with a frequency response of 40Hz–16kHz and XLRM 3-pin male output—ideal for speeches, conferences, broadcasting, and studio applications.$241.84
Harmonai CM-502 Professional Speech Condenser Microphone — Dual-Mic Kit for Clear Conference & Presentation Audio

Harmonai CM-502 Professional Speech Condenser Microphone — Dual-Mic Kit for Clear Conference & Presentation Audio

The CM-502 professional speech microphone set includes two CML-400 back-electret condenser mics, H-230 bronze base, S-30 windscreen foam caps, and a portable protective case. Featuring cardioid pickup, 40Hz–16kHz frequency response, 48V phantom power, and XLR male output for clear, stable vocal capture in speeches and meetings.$193.09
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The Harmonai EM-968 is a hyper-cardioid condenser microphone engineered for professional interviews, field reporting, and broadcast applications. Featuring a back-electret condenser capsule, dual power (48V phantom or 1.5V AA battery), -29dB sensitivity, 70dB SNR, 106dB dynamic range, and 40Hz–16kHz frequency response, it delivers studio-quality audio via XLR output.$42.06
Harmonai EM-965 Professional Interview Microphone — Hyper-cardioid Back Electret Condenser Mic

Harmonai EM-965 Professional Interview Microphone — Hyper-cardioid Back Electret Condenser Mic

The EM-965 is a professional interview microphone from Harmonai, featuring a hyper-cardioid back electret condenser design with dual power options (48V phantom or 1.5V AA battery), ideal for news reporting, film production sound recording, and live broadcast applications.$38.24
Harmonai EM-935 Hyper-cardioid Professional Interview Microphone — Back Electret Condenser, Broadcast-Grade

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The Harmonai EM-935 is a professional hyper-cardioid interview microphone featuring a back electret condenser capsule, dual power support (48V phantom / 1.5V AA battery), 40Hz–16kHz frequency response, 180Hz low-cut switch, and XLRM output — ideal for news reporting, broadcast, and documentary production.$47.79
Harmonai EM-835 Professional Hyper-cardioid Interview Microphone — Broadcast-Grade Recording Mic

Harmonai EM-835 Professional Hyper-cardioid Interview Microphone — Broadcast-Grade Recording Mic

The Harmonai EM-835 is a professional condenser microphone designed for news interviews, documentary filming, and live reporting. Its back-electret capsule and hyper-cardioid polar pattern suppress ambient noise while capturing clear, focused vocal audio. Supports dual power (48V phantom or 1.5V battery) and features an 180Hz high-pass filter switch for versatile field use.$47.79
Harmonai EM-765 Professional Interview Microphone — Supercardioid Polar Pattern, High SNR Broadcast-Grade Mic

Harmonai EM-765 Professional Interview Microphone — Supercardioid Polar Pattern, High SNR Broadcast-Grade Mic

The Harmonai EM-765 is a professional supercardioid interview microphone featuring back-electret condenser capsules and acoustic interference technology, powered by 48V phantom power and equipped with a gold-plated XLRM male output. Its lightweight, compact design (123g, 225mm length) is optimized for news reporting, field interviews, and broadcast recording.$27.72
Harmonai EM-735 Supercardioid Professional Interview Microphone

Harmonai EM-735 Supercardioid Professional Interview Microphone

The EM-735 is a supercardioid professional interview microphone using acoustic interference principles for exceptional directionality, with 40Hz–16kHz frequency response, built-in low-frequency roll-off switch, 48V phantom power, gold-plated XLR output, and lightweight design (149g) ideal for interviews and field reporting.$38.24
Harmonai EM-673 Hyper-cardioid Interview Microphone — Professional ENG/EFP Broadcast Mic

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The EM-673 professional interview microphone features a hyper-cardioid polar pattern and back-electret condenser capsule, housed in a solid copper body with built-in low-frequency filtering—delivering clear, pristine audio for ENG/EFP field reporting.$43.97
Harmonai CM-505 Professional Speech Microphone Set — 5-Piece Capacitor Conference Mic System

Harmonai CM-505 Professional Speech Microphone Set — 5-Piece Capacitor Conference Mic System

The Harmonai CM-505 professional speech microphone set includes five back-electret condenser cardioid microphones, paired with H-230 bronze bases, S-30 windshields, and a protective carrying case. Powered by 48V phantom power, with XLRM male outputs—ideal for conferences, speeches, and training sessions.$339.34
Harmonai EM-280 Professional Supercardioid Interview Microphone — Supercardioid Polar Pattern with Back-Electret Condenser Element

Harmonai EM-280 Professional Supercardioid Interview Microphone — Supercardioid Polar Pattern with Back-Electret Condenser Element

The Harmonai EM-280 is a professional interview microphone leveraging acoustic interference for exceptional supercardioid directivity. With a wide, balanced frequency response (40Hz–16kHz), gold-plated XLRM 3-pin male connector, and lightweight 95g design, it’s ideal for broadcast journalism, field reporting, and conference audio capture.$14.34

Contact

Mobile: +86 135 6792 0078

Business email: sales@harmonai.cn

Office

Address: Unit 2, Liandong U Valley, Yinzhou District, Ningbo, Zhejiang

Hours: Monday to Saturday 09:00 - 18:30

Services

Professional audio, conference sound, wireless microphones and commercial AV integration

Harmonai is the global trade platform of Frog-is Acoustic Systems