Audio-Technica AT831cH Lavalier Microphone
The AT831cH is the cardioid condenser lavalier from Audio-Technica's AT831 family, permanently terminated with a cH-style screw-down 4-pin connector for Audio-Technica cH-style bodypack transmitters. Its cardioid pattern favors the wearer and rejects sound from the sides and rear, which controls feedback and room noise where an omnidirectional lavalier would struggle.
The 55 inch (1.4 m) miniature cable keeps the connection tidy on a beltpack for presenters and performers who move. It clips discreetly to clothing for speech and handles acoustic instruments that need isolation, and it ships with a foam windscreen and clothing clip.
| Element | Fixed-charge condenser, permanently polarized |
|---|---|
| Polar Pattern | Cardioid |
| Frequency Response | 40-20,000 Hz |
| Form Factor | Lavalier and instrument microphone |
| Cable | 55 in (1.4 m), permanently attached |
| Termination | cH-style screw-down 4-pin bodypack |
| Included | Windscreen, clothing clip |










