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

The Harmonai ACT-804 Handheld is a professional-grade UHF wireless microphone, featuring advanced PLL phase-locked loop frequency synthesis technology. It offers 200 selectable channels and supports up to 15 units operating simultaneously without interference. Its RF carrier frequency range covers the professional band of 615–695 MHz, with an effective transmission distance of up to 150 meters (line-of-sight, unobstructed).
The handheld unit uses a cardioid dynamic capsule, with a frequency response of 80 Hz–18 kHz, delivering accurate vocal reproduction. It features an LCD display and intelligent low-battery warning for clear status monitoring. Dual-output design includes balanced XLR output (+10 dBV) and unbalanced 6.35 mm output (+8 dBV), offering flexible compatibility with mixers, power amplifiers, speakers, and other professional audio equipment.
DC 12 V
615–695 MHz
150 meters (line-of-sight, unobstructed)
200
Up to 15 units operating simultaneously
80 Hz–15 kHz (±3 dB)
>100 dB (A-weighted)
XLR × 4 / 6.35 mm × 1
Dynamic (cardioid polar pattern)
80 Hz–18 kHz
AA × 2 (1.5 V), runtime >5 hours
44.4 mm (H) × 483 mm (W) × 185 mm (D)
The ACT-804 handheld wireless microphone is widely suitable for professional audio applications: corporate meetings and presentations, stage performances, KTV entertainment, education and training, wedding hosting, and outdoor events. Its cardioid pickup pattern effectively suppresses ambient noise; the 150-meter transmission range meets requirements for medium-to-large venues; and support for up to 15 simultaneous units enables multi-microphone, multi-host setups.
For detailed technical specifications or bulk procurement options for the Harmonai ACT-804 handheld wireless microphone, please contact us for professional consultation and quotation.