UHF (ultra high frequency) wireless monitoring system is especially designed for instrument/ stage monitoring and simultaneous interpretation. It supports up to 10 channels and is suitable for multili more→ngual interpretation. With 164ft long transmission distance and stable performance, it's very practical to use. Features: A wireless monitoring system tailored for instrument/ stage monitoring and simultaneous interpretation. LED digital display for easy reading and convenient use. 520-600MHz UHF wireless transmission, 50m (164ft) transmission distance without obstacles, PLL (phase-locked loop) technology, stable and reliable performance. Anti-interference composite circuit is designed for