Description This dual-channel true diversity wireless handheld microphone system is wirely applied to large concert stages, band live shows, music festivals, outdoor commercial galas, wedding hosting, theater performances. And all kinds of professional large-scale audio amplification occassions that require long-distance stable wireless sound pickup. Features: True diversity 4-antenna receiving technology delivers ultra-stable signal reception, effectively eliminating audio dropouts and signal dead zones during movement. Up to 150 meters reliable wireless transmission range in open areas, supporting free large-range mobility on site. Equipped with 100 adjustable UHF frequency channels, easy to avoid frequency interference from other audio & lighting devices. Clear, full-frequency vocal pickup handheld microphones with metal body, durable for frequent stage use. One-click automatic frequency pairing, simple operation without complicated manual tuning. Specifications - Details Frequency Range - 30Hz-20KHz Signal-to-noise Ratio - >96dB RF Stability - ±0.005% Comprehensive S/N Ratio - >90dB Harmonic Radiation - <-55dBc Maximum offset - ±48KHz Transmission Distance - 150m Channel - 2*100ch