Carrier Frequency Range
640–690 MHz
Professional audio, microphones and system integration

Harmonai SOM-2500 is a professional UHF-band wireless microphone system designed for karaoke, conference speaking, live stage performances, and other applications. It features a true diversity 1-transmitter/two-receiver architecture, including two handheld microphones and one rack-mount dual-channel receiver. It operates in the UHF 640–690 MHz band with exceptional frequency stability of ±0.005%, ensuring reliable signal transmission. The receiver’s front panel includes dual-channel LCD displays showing real-time channel and frequency data, and IR infrared synchronization enables fast, precise channel pairing.
640–690 MHz
45 Hz–18 kHz (±3 dB)
>105 dB(A)
S/N >60 dB when input is 6 dBµV at 25 kHz deviation
±0.005%
2 × 1.5 V AA alkaline batteries
The SOM-2500 wireless microphone system is widely used in KTV entertainment venues, delivering clean, interference-free vocal transmission for singers; in conference speaking and business presentations, where its high SNR ensures crystal-clear voice intelligibility; and in live stage performances and small concerts, where its robust UHF band performance resists interference—even with multiple systems operating simultaneously. Its rack-mount receiver design integrates seamlessly into standard audio racks, making it an ideal choice for professional audio engineering installations.
For more technical specifications or bulk procurement options for the SOM-2500 wireless microphone system, please contact our professional support team anytime.