Main Unit Operating Voltage
DC 12 V
Professional audio, microphones and system integration

The Harmonai ACT-808 Gooseneck Conference Microphone is a professional UHF wireless conference microphone system designed for demanding meeting environments. It features PLL frequency synthesis technology, a supercardioid condenser capsule, and a 40 cm gooseneck pickup stem for accurate, clear voice capture. The main unit supports 200 auto-switching channels, allows up to 5 systems to operate simultaneously, and achieves an operating range of up to 150 meters — meeting diverse needs from small-to-medium meeting rooms to large auditoriums.
The system employs a dual anti-interference solution: digital pilot tone and noise-lock squelch control, effectively shielding against mobile phone electromagnetic interference to ensure stable, clean audio throughout meetings. The main unit offers 8 XLR outputs and 1 1/4-inch output, and features standard rack-mount design (88.8 mm H × 483 mm W), enabling seamless integration into professional sound reinforcement systems.
DC 12 V
2000 mA
24 W
LCD display
615–695 MHz
150 m (line-of-sight, unobstructed)
FM
Digital pilot tone
200
Up to 5 units operating simultaneously
100 Hz – 15 kHz (±3 dB)
>110 dB
<0.5%
>100 dB (A-weighted)
−98 dBm (30 dB S/N ratio)
>75 dB
8 × XLR / 1 × 1/4-inch jack
+10 dBV
+8 dBV
3 kΩ
3 kΩ
12 V / 2 A
0–50 °C
−105 dBm
<0.01%
0.3 V
>60 dB
88.8 mm (H) × 483 mm (W) × 185 mm (D)
Condenser / Electret
Supercardioid
>−20 dBm (1 V)
>+10 dBm (10 mW)
110 mA
100 Hz – 18 kHz
±0.001%
Supported
10 dB
5 kΩ
30 mW
>50 dB
LCD display
1.5 V × 3 (AA batteries)
>10 hours (based on 2400 mAh capacity)
40 cm
50 cm
18 cm (L) × 12 cm (W) × 9 cm (H)
610–780 MHz
Microcomputer CPU control
±0.002%
±45 kHz
Microcomputer CPU control
Smart low-voltage warning display
PLL frequency synthesis technology, dynamic audio compression, and automatic level control circuit
Noise-lock squelch control + tone-code navigation squelch control
ACT-808 Gooseneck Conference Microphone
Microphone
MXH Maxinghe Professional UHF Wireless Microphone
Medium-to-large conference rooms: Supports concurrent operation of up to 5 systems, ideal for interdepartmental meetings.
Auditoriums & lecture halls: Supercardioid polar pattern precisely captures speaker voice while suppressing ambient noise and reverberation.
Government & enterprise facilities: LCD status monitoring + smart low-voltage warning ensures reliability during formal meetings.
Training rooms & seminars: 150-meter wireless range enables flexible, cable-free setup.
Courts & legislative chambers: Professional XLR audio outputs integrate seamlessly with sound reinforcement and recording systems.
For detailed specifications, custom system solutions, or bulk procurement quotes, contact the Harmonai professional team for dedicated support.