Horn parameters Outer diameter size: ф28mm Frequency response: 100HZ~6.8KHZ Sensitivity: 110±3dB(at1KHz1mw) Impedance: 150Ω±5% Distortion: <1% Rated input power: 30mW Maximum withstand power: 50mW Microphone parameters Directionality: single point Size: ф6*2.7mm Frequency range: 50HZ-3.0kHZ Sensitivity: -42±3db Impedance: 2.2K Working voltage: 3.0V Current: 100uA-400Ua Operating systems compatibility: Windows/MAC/Linux Software compatibility: Skype, Zoom, Microsoft Teams and other video conferencing software