Harmonai ACT-518 Dual-Channel True Diversity Wireless Microphone

The Harmonai ACT-518 is a professional dual-channel true diversity wireless microphone system with PLL frequency synthesis and infrared auto-sync, delivering stable transmission up...

$20.63

Model: ACT-518
Category: Microphones
Images: 4 images
Status: ready

Product Brief

Harmonai ACT-518 Dual-Channel True Diversity Wireless Microphone

Overview

The Harmonai ACT-518 is a professional dual-channel true diversity wireless microphone system with PLL frequency synthesis and infrared auto-sync, delivering stable transmission up...

Price: $20.63
Model: ACT-518
Category: Microphones

Specifications

Parameter	Value
System Type	Dual-channel true diversity wireless microphone
Operating Distance	Over 200 meters; up to 500 meters in open spaces
Transmitter Operating Frequency	600–700 MHz
Transmitter Control Technology	Microcomputer CPU control with PLL phase-locked loop frequency synthesis
Transmitter Sync Method	Infrared sync
Transmitter Channels	Select freely from 32/64/99 channels, with LCD digital display
Transmitter Frequency Stability	±0.002%
Transmitter Max FM Deviation	±45 kHz
Transmitter Battery Warning	Intelligent low-voltage battery warning display
Transmitter Audio Processing	Dynamic audio compression and automatic level control circuit
Transmitter Power Supply	Two AA batteries, providing approximately 8 hours of continuous operation
Receiver Operating Frequency	600–690 MHz
Receiver Control Technology	Microcomputer CPU control with PLL phase-locked loop frequency synthesis
Receiver Sync Method	Infrared sync
Receiver Channels	Select freely from 32/64 channels, with LCD digital display
Receiver Frequency Stability	±0.002%
Receiver Squelch Control	Noise-lock squelch + tone-code navigation squelch
Receiver Audio Processing	Audio dynamic expansion and automatic level control circuit
Reception Method	True diversity reception

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 ACT-518 Dual-Channel True Diversity Wireless Microphone product image

Product Overview

The Harmonai ACT-518 is a professional-grade dual-channel true diversity wireless microphone system featuring advanced PLL phase-locked loop frequency synthesis and infrared auto-frequency synchronization, ensuring stable and reliable signal transmission. The transmitter operates in the 600–700 MHz range; the receiver covers 600–690 MHz. Effective transmission distance reaches up to 500 meters in open spaces. Equipped with an intelligent LCD digital display, the system supports flexible multi-channel switching — both microphones can operate simultaneously without interference, making it ideal for conference hosting, stage performances, and educational training.

System Type

Dual-channel true diversity wireless microphone

Transmission Distance

Over 200 meters; up to 500 meters in open spaces

Transmitter Frequency

600–700 MHz

Receiver Frequency

600–690 MHz

Frequency Stability

±0.002%

Max FM Deviation

±45 kHz

Transmitter Channels

Select freely from 32/64/99 channels, with LCD digital display

Receiver Channels

Select freely from 32/64 channels, with LCD digital display

Sync Method

Infrared sync

Control Technology

Microcomputer CPU control with PLL frequency synthesis

Receiver Squelch

Noise-lock squelch + tone-code navigation squelch

Reception Method

True diversity reception

Transmitter Power Supply

Two AA batteries

Battery Life

Approximately 8 hours

Recommended Applications

The ACT-518 is suitable for professional applications requiring stable wireless audio pickup, including conference hosting, stage performances, KTV entertainment, educational training, and outdoor events. Its 500-meter ultra-long transmission range easily covers large venues and open-air sites, while true diversity reception ensures uninterrupted signal even in complex RF environments.

Contact our professional team anytime for more product details or bulk procurement options.