Multi-purpose, omni-directional headset microphone with a wired mini-jack (3.5mm). This electret condenser microphone requires a bias voltage of 2-10VDC which all Azden bodypack transmitters provide. Super light-weight and unobtrusive design combine comfort and functionality.Any of Azdens microphones with a 3.5mm mini-jack output can be made to work with a smartphone or tablet using the HX-Mi TRRS Mic/Headphone Cable (please note the headset does not include a speaker/earpiece).Features:- Handcrafted in Japan- Omni-directional microphone- Headset places mic element close to mouth- Lightweight, unobtrusive design- Powered by 2-10V DC- Power provided by Azden body-pack transmitters- For use with PRO Series, 15BT & 35BT wireless transmitters- 3.5mm mini-jack outputSpecs:- Mic Element: Electret Condenser- Freq Response: 30-18,000 Hz- Polar Pattern: Omni-directional- Sensitivity: 46dB @ 1kHz (0dB-1V/Pa)- Impedance: 2.2k ohms @ 1kHz- Voltage Required: 2-10VDC