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Audio Technica AT831CW Wireless Lapel Mic for AT UniPak

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Product Description

The AT831CW is terminated with locking 4-pin connector for AT UniPak bodypack wireless transmitters.  Featuring a miniature condenser microphone with a cardioid polar pattern, the AT831CW is designed for hands-free applications in sound reinforcement systems and for use by professional musicians. The AT831CW provides improved gain before feedback that normally cannot be achieved with miniature omnidirectional microphones. Close-up voice pickup is crisp and clean, yet full sounding, while suppression of background noise is significantly improved over that of stand-mounted full-size cardioid microphones. Audio-Technica design engineers have utilized the newest low-mass technology in the quest for superior performance.


  • Clip-on lavalier condenser cardioid microphone
  • Provides crisp, full-sounding voice
  • Excellent gain before feedback and suppression of background noise

The microphone can be attached to clothing using the clip provided. An open-pore foam windscreen simply slips over the head of the microphone, effectively reducing wind noise or popping when used extra close.

Product Specifications

Audio Technica AT831CW Specifications

  • Element: Condenser
  • Signal to Noise Ratio: 65 dB, 1 kHz at 1 Pa
  • Polar Pattern: Cardioid
  • Dynamic Range (Typical): 112 dB, 1 kHz at Max. SPL
  • Frequency Response: 40 - 16,000 Hz
  • Open Circuit Sensitivity: -42 dB (7.9 mV) re 1V at 1 Pa
  • Weight: 0.1 oz (2.8 g)
  • Impedance: 250 ohms
  • Maximum Input Sound Level: 141 dB SPL, 1 kHz at 1% T.H.D.
  • Output Connector: Locking 4-pin connector for A-T UniPak
  • Accessories:  Includes clothing clip and windscreen

Helpful Info about the Manufacturer
Phone:  330-686-2600 Warranty:  1 Year;
2 Year on Headphones and In Ear Monitors;
5 Year on 40 Series, Artist Elite, Broadcast and Production, Midnight Blues Series;
Liftetime on ATR and Premium Cable
pituso camajuani from Miami, FL USA,
Overall Rating
Ease of Use
Lapel microphone for the rest of us
Would you consider this product to be made well? How dependable?
It has been very dependable since I bought it which was the year 2004. Not a problem since.
What do you consider to be the best features of this product? What features would you add to this product if you could?
Price is adequate for this type of unit. It could sound better but again it is for a certain system with its own limitations.
Ease of Use
How easy is this product to use? How easy is the product to use with other products? Did it take long for you to learn to use this product? Was the manual helpful? How playable do you consider this product to be?
Pretty straightforward lapel mike for the Audio Technica Unipaks.
How is the tone?
Not the best sounding lapel in the market but fair tone for the price.
Currently there are no discussions available for this item.
MSRP: $156.00