Technical Pro WM1641 Professional UHF Quad Wireless Microphone System Type: Wireless Microphone Systems Specification: Quad signal UHF high band Polar Pattern: Dynamic Cardioid Digital sound processing Outputs: Individual XLR outputs per channel, one 1/4' mixed output Frequency range: 620MHz-683MHz Frequency stability: ±0.005% Modulation mode: FM Maximum deviation range: ±25kHz with limiting compressor Frequency Response: 40Hz-20kHz Signal to noise ratio: 100dB Total harmonic distortion: Frequency Response: 40Hz-20kHz Dimension: 19' w x 1.75' h x 9.5' d Weight: 5 lbs