Product Overview

Harmonai GP-220 is a professional-grade UHF wireless microphone system covering the 640–690 MHz frequency band and offering up to 200 selectable channels, meeting diverse wireless audio transmission needs across venues. It uses FM modulation technology, delivering a high composite signal-to-noise ratio of ≥103 dB and ultra-low distortion of ≤0.5%, ensuring clean, high-fidelity sound reproduction.

The transmitter supports dual-power modes (20 mW / 10 mW), enabling up to ~60 meters of transmission range in open environments. It features either built-in or external 1/4-wavelength antennas for flexible adaptation to various setups. The receiver provides balanced output and mixed output audio interfaces, ensuring compatibility with a wide range of professional audio equipment.

The transmitter is powered by two AA batteries, delivering 4–10 hours of continuous operation—ideal for extended live performances, conferences, or classroom instruction. Its compact, portable design makes it an excellent choice for stage productions, conferencing systems, and educational applications.

Recommended Applications

The GP-220 wireless microphone system is ideal for live stage performances, KTV entertainment, conference presentations, education & training, and wedding ceremonies. With its ~60-meter open-space range and 200-channel flexibility, multiple GP-220 systems can operate simultaneously without interference—making it a dependable solution for professional audio engineering and multi-venue deployments.