GP-220T product display image

Product Overview

The Harmonai GP-220T is a professional-grade UHF wireless microphone system featuring true diversity reception technology, operating across the 600–695 MHz frequency band with 200 selectable channels. It includes 23-level electronic volume control, one-touch automatic search for vacant frequencies and one-touch channel lock for intuitive operation. Infrared sync supports 300 frequency groups, enabling universal microphone interchangeability and strong interference resistance. The transmitter features an LCD display showing channel and battery level, with low-voltage flashing alerts and automatic shutdown at 1.8 V. A dedicated feedback suppression function effectively reduces acoustic feedback. Effective transmission distance reaches 130 meters (in open environments), with a composite signal-to-noise ratio >110 dB and audio response of 40 Hz–18 kHz, delivering pure, clear sound quality.

Volume Control

23-level electronic volume control

Reception Technology

True diversity reception technology

Frequency Range

600–695 MHz

Modulation Method

Wideband FM

Number of Channels

200

Channel Spacing

200 kHz

Frequency Stability

Within ±0.005%

Dynamic Range

>105 dB

Composite Signal-to-Noise Ratio

>110 dB

Composite Distortion

≤0.2%

Audio Response

40 Hz–18 kHz (±3 dB)

Operating Distance

130 meters (open environment)

Infrared Sync

300 frequency groups, universal microphones

Transmitter Display

LCD display showing channel and battery level

Feedback Suppression

Acoustic feedback suppression function

Operating Temperature

−25 °C to +40 °C

Recommended Applications

Ideal for conference speaking, stage performances, wedding hosting, education and training, KTV entertainment, and other professional sound reinforcement applications. With a 130-meter transmission range and 200 selectable channels, it supports flexible deployment across multiple venues. The 23-level volume adjustment and feedback suppression ensure stable, clear on-site sound reinforcement. Its wide operating temperature range (−25 °C to +40 °C) makes it suitable for diverse indoor and outdoor environments.

For more technical details or pricing information about the Harmonai GP-220T wireless microphone system, please contact us anytime for professional consultation.