1. 4 types of switchable directivity
2. Support microphone gain headphone volume adjustment
3. Support one-button mute audio output such as headphone speaker
4. Support 15mm standard spiral bracket interface

Product parameters:
1. Directivity: Stereo / Omni / Uni / Bi-directional
2. Sensitivity: -46db +/- 2dB
3. Frequency response: 20Hz-20KHz
4. SNR: >36dB
5. Impedance: <=2.2Kohm
6. Cable length: 1.35m