How are frequencies matched between devices?

Receiver and transmitter use IR infrared frequency matching for one-click synchronization.

What is the signal-to-noise ratio?

The S/N signal-to-noise ratio is greater than 105dB.

Is the device suitable for touring?

Yes, it is designed specifically for touring and fixed installation purposes.

True Diversity PRO Dual Channel Headset Microphone Belt Pack Microphones

Name: True Diversity PRO Dual Channel Headset Microphone Belt Pack Microphones
Brand: Guangzhou Temeisheng Audio Technic Co Ltd
SKU: 2081567985

Guangdong, ChinaGuangzhou Temeisheng Audio Technic Co Ltd

US$248.00

1-5 Sets

US$238.00

6-49 Sets

US$199.00

50-199 Sets

US$189.00

200+ Sets

Sample price:US$248.00/set.Request sample

Product profile

Customization

Available

Style

Belt Pack Microphone

Application

Music, Voice, Meeting

Model NO.

MPRO-22BD

Signal Transmission

Wireless

Sound Channel

Wireless Technology

UHF

Output Impedance

50-1000Ω

Operating Frequency

640-690MHz

Control

Microcomputer CPU Control

S/N Signal-to-Noise Ratio

>105dB

T.H.D Distortion

<0.5%

Frequency Response

40Hz-18kHz

Working Frequency

640-690MHz

Frequency Stability

± 0.002

Pickup Gain Adjustment Knob

-20dB to+35dB

FM Maximum Modulation Frequency Deviatio

± 45kHz

RF Output Power

High 10MW/Low 5MW

RF Transmission Frequency Range

640-690 MHz

Material

Aluminum Alloy

Transport Package

Gift Box/ Export Carton/ Pallet

Trademark

Ben & Fellows or OEM

Origin

China

HS Code

8518100090

Production Capacity

500000PCS Per Year

Key features

True Diversity Reception: Dual channel independent signal selection minimizes frequency interruption.

Automatic Frequency Search: AFS function quickly scans and locks frequencies with least interference.

One-Click IR Matching: Infrared technology synchronizes receiver and transmitter codes instantly.

Advanced Noise Control: Phase locking circuit with digital pilot technology suppresses interference.

Comprehensive LED Display: Backlit screen shows RF/AF strength, battery, and channel status.

Patented Audio Technology: Audio Reference Compression Extension ensures excellent dynamic response.

Long Battery Life: 2 AA batteries provide approximately 8 hours of continuous use.

Flexible Customization: Full customization, sample-based, design-based, and minor options available.

Company profile

Importers and ExportersPatents AwardedQuality AssuranceR&D Capabilities

Guangzhou Temeisheng Audio Technic Co Ltd

Guangdong, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 6 years CertifiedNearest Port: Guangzhou Port, Shenzhen PortAverage Response Time: ≤4.63h

AI-Powered supplier vetting

SummaryThe supplier is identified as a combined company in Guangdong offering export trade, manufacturing, service, quality control, R&D, and sustainability information. It demonstrates broad customization, ODM capability, recent product development, OEM service for known brands, five production lines, and documented procedures for service quality, complaints, and corrective actions. Export activity is substantial at 90% of total sales, with 17 experienced export-trade staff and Guangzhou Port proximity. However, the supplier has no SDK, overseas warehouse, showroom, overseas agent or branch, and has not participated in offline trade shows. Financial information is limited to year labels without measurable financial results. Quality control staffing is two inspectors, and continuous quantity reconciliation for each batch is not performed.

Supplier typeThe supplier is classified as a combined company, with offerings covering export trade, manufacturing, service, quality control, R&D, photos, and sustainability. Its head office is in Guangdong, and the representative title identifies portable and Bluetooth speaker products.

After-Sales capabilityThe supplier has written and followed procedures for service assessment, corrective and preventive actions, and customer complaint handling. However, it has no overseas warehouse, showroom, overseas agent, or branch, and reports zero countries with overseas services, limiting evidence of local overseas after-sales coverage.

R&D capabilityThe supplier reports an industry-leading design team, new products during the past year, ODM services, and customization from samples and designs. It does not have an available SDK, so its innovation evidence is stronger in product design and development than in software-development support.

Production capacityThe supplier reports five production lines, manufacturing equipment including punching, grinding, resistance and hi-pot testers, an oscilloscope, and standardized finished-product inspection instructions. It also has 90% export sales and 17 experienced export-trade staff, but does not continuously reconcile quantities for every batch.

Customization capabilityBoth R&D and design-service information explicitly lists customization from samples, customization from designs, full customization, minor customization, and flexible customization. ODM service is also available, providing direct evidence of broad customization support.

Client casesThe supplier explicitly states that it provides OEM services for well-known brands. No brand names, project details, product volumes, or verification materials are supplied, so the evidence supports the existence of brand-serving experience but not its breadth or quality.