Different options have different configurations. Please refer to the SKU image when ordering Professional Speaker Microphone using precise complete electronic circuit control. Capture rich and full-bodied sound from sources right in front of the microphone. The shock absorber can effectively reduce handling noise. The ball type windproof foam cover can protect the microphone from wind interference and singer spit. (1) BM800 Professional Audio Mixer: Bass reduction switch (-10dB) reduces room noise and handles non-linear audio input. Use electronic circuit precision to eliminate cross interference and harmonic interference. Good cardioid pickup output and high sensitivity. Low noise. Wide dynamic range. Suitable especially for studio, recording studio, broadcasting station, stage performance and computer in sound reinforcement or recording, to pick up sound or instruments, indoors or outdoors. Specifications: Microphone Core: Dia.16mm Polar Pattern: Cardioid Frequency Response: 20Hz-20kHz Sensitivity: -38dB ± 2dB (0dB = 1V / Pa at 1kHz) Output Impedance: 150 ohms± 30% (at 1kHz) Load Impedance: ≥ 1000 ohms. Noise Level: 16dBA Max: 132dB S/N Ratio: 78dB Current: 3mA Voltage: 1.5V Battery Weight: 11oz / 316g Color: Black, White, Blue, Pink, Black with Gold Material: Metal Note: Do not drop, hit or apply strong shock to it. To maintain sensitivity and reproduction sound quality, avoid exposing it to excessive humidity and temperature. It cannot work with Mac.