The Audio-Technica AT831R is a top - notch cardioid condenser lavalier microphone. It's perfect for professional audio pickup, whether you're recording speeches or playing acoustic guitar. This clip - on mic gives you clear, rich voice and instrument recordings. It shines in high Sound Pressure Level (SPL) settings, offering great versatility. Powered only by phantom power, it ensures high - quality, interference - free sound. With excellent gain before feedback and effective background noise suppression, it's a must - have for various professional uses. It comes with a 4.0 - meter cable and a TA3F connector at the power module. You can choose from different configurations to fit your needs, like battery/phantom power modules and specialized connectors for A - T UniPak, Shure, or Lectrosonics wireless systems. Plus, it's RoHS compliant, which means it's an eco - friendly option.
**Key Features**
- Ideal for voice and acoustic guitar applications
- Crisp and full - sounding pickup
- Great gain before feedback and noise suppression
- Runs on phantom power only
- 4.0 m cable with TA3F connector
- RoHS compliant, no hazardous substances
- Multiple configuration choices available
**Specifications**
- Element: Fixed - charge back plate, permanently polarized condenser
- Polar Pattern: Cardioid
- Frequency Response: 40 - 16,000 Hz
- Low Frequency Roll - Off: 80 Hz, 18 dB/octave
- Open Circuit Sensitivity: - 42 dB (7.9 mV) re 1V at 1 Pa
- Impedance: 250 ohms
- Maximum Input Sound Level: 141 dB SPL, 1 kHz at 1% T.H.D.
- Dynamic Range (typical): 112 dB, 1 kHz at Max SPL
- Signal - to - Noise Ratio: 65 dB, 1 kHz at 1 Pa
- Phantom Power Requirements: 11 - 52V DC, 2 mA typical
- Switch: Flat, roll - off
- Weight (Microphone): 0.1 oz (2.8 g)
- Weight (Power Module): 2.9 oz (81 g)
- Dimensions (Microphone): 0.98' (25.0 mm) long, 0.40' (10.2 mm) diameter
- Dimensions (Power Module): 3.66' (92.9 mm) long, 0.74' (18.9 mm) diameter
- Output Connector (Power Module): Integral 3 - pin XLRM - type
- Cable: 4.0 m (13.1') long, 3.2 mm (0.13') diameter, 2 - conductor, shielded cable with TA3F - type connector
**Package Contents**
- Clothing clip
- AT8444 guitar adapter
- AT8538 remote power module
- AT8116 windscreen
- Protective carrying case

Using the Audio - Technica AT831R is quite simple. First, clip the microphone onto your clothing. Make sure it's close to your mouth or the sound source for the best results. Connect the 4.0 - meter cable to the appropriate power module using the TA3F connector. Then, connect the power module to a device that can provide phantom power within the range of 11 - 52V DC.
When using it for speech, keep the microphone at a consistent distance from your mouth to maintain a steady sound level. For acoustic guitar, you can use the AT8444 guitar adapter for better pickup.
As for maintenance, store the microphone in the protective carrying case when not in use. Avoid exposing it to extreme temperatures or moisture. If it gets dirty, gently wipe it with a soft, dry cloth. Also, check the cable regularly for any signs of damage. If you need different configurations, like using a battery/phantom power module or a specialized wireless connector, make sure to follow the instructions provided with those accessories.