Harmonai MR40 UHF Quad-Channel Wireless Conference Microphone System image 1

Harmonai MR40 UHF Quad-Channel Wireless Conference Microphone System — Professional 4-Channel Conference Solution

The Harmonai MR40 is a professional UHF (640–690 MHz) quad-channel wireless conference microphone system with independent channel reception, >105 dB SNR, and >100 dB dynamic range—...

$153.90

Model: MR40
Category: Microphones
Images: 4 images
Status: ready

Product Brief

Harmonai MR40 UHF Quad-Channel Wireless Conference Microphone System — Professional 4-Channel Conference Solution

Overview

The Harmonai MR40 is a professional UHF (640–690 MHz) quad-channel wireless conference microphone system with independent channel reception, >105 dB SNR, and >100 dB dynamic range—...

Price: $153.90
Model: MR40
Category: Microphones

Specifications

Parameter	Value
Frequency Range	640–690 MHz
Receiver Sensitivity	-94 dBm (30 dB)
Image Rejection	>60 dB
Frequency Stability	±0.005%
Modulation Method	FM
Maximum Frequency Deviation	±45 kHz
Audio Response	50 Hz–18 kHz (+3 dB)
Signal-to-Noise Ratio (SNR)	>105 dB
Dynamic Range	>100 dB
Total Harmonic Distortion (THD)	<0.5%
Operating Temperature	-10°C to 55°C
Receiver Power Supply	12 V / 1 A
Harmonic Radiation	<-63 dBm
Bandwidth	80 MHz
Maximum Input Sound Pressure Level (SPL)	130 dB SPL
Current Consumption	<110 mA
Transmitter Output Power	30 mW
Transmitter Frequency Response	50 Hz–18 kHz
Transmitter Power Supply	2 × 1.5 V AA batteries

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

UHF quad-channel wireless conference microphone product image

Product Overview

The Harmonai MR40 UHF quad-channel wireless conference microphone system is a high-performance wireless solution designed specifically for medium-to-large conference rooms, multi-function halls, and training centers. Operating in the UHF 640–690 MHz band, it features a four-channel independent receiver architecture—ensuring each channel operates without interference. With a receiver sensitivity of -94 dBm, signal-to-noise ratio exceeding 105 dB, and dynamic range greater than 100 dB, combined with FM modulation and ±45 kHz wide frequency deviation, the system delivers crystal-clear, high-fidelity voice reproduction. Transmitters are powered by standard AA batteries—offering portability and durability ideal for professional meeting environments.

Frequency Range

640–690 MHz

Receiver Sensitivity

-94 dBm (30 dB)

Image Rejection

>60 dB

Frequency Stability

±0.005%

Modulation Method

Maximum Frequency Deviation

±45 kHz

Audio Response

50 Hz–18 kHz (+3 dB)

Signal-to-Noise Ratio (SNR)

>105 dB

Dynamic Range

>100 dB

Total Harmonic Distortion (THD)

<0.5%

Operating Temperature

-10°C to 55°C

Receiver Power Supply

12 V / 1 A

Harmonic Radiation

<-63 dBm

Bandwidth

80 MHz

Maximum Input Sound Pressure Level (SPL)

130 dB SPL

Current Consumption

<110 mA

Transmitter Output Power

30 mW

Transmitter Frequency Response

50 Hz–18 kHz

Transmitter Power Supply

2 × 1.5 V AA batteries

Recommended Applications

The MR40 quad-channel wireless conference system is suited for diverse professional settings: medium-to-large corporate meeting rooms support multiple simultaneous speakers without cross-talk; government agencies and public institutions can flexibly deploy multiple microphones for voting or deliberation systems; multi-function halls, auditoriums, and training centers benefit from its stable, reliable wireless audio capture; and educational institutions use it for group discussions and interactive teaching. The UHF band ensures robust signal transmission even in electromagnetically complex environments, while the wide operating temperature range (-10°C to 55°C) accommodates varying climatic conditions across regions.

For more product details or customized conference system solutions, contact the Harmonai professional team—we provide one-on-one technical support and tailored consultation.