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Professional-quality vocal pickup with hands-free operation
Low-visibility headband provides a stable and comfortable fit
Pivot-mounted flexible microphone allows for easy positioning on either side of the head
Cardioid polar pattern improves isolation of the desired sound source
| Element | Fixed-charge back plate, permanently polarized condenser |
|---|---|
| Polar Pattern | Cardioid |
| Frequency Response | 100 – 13,000 Hz |
| Low Frequency Roll Off | 80 Hz, 18 dB/octave (wired only) |
| Open Circuit Sensitivity | Phantom: -51 dB (2.8 mV) re 1V at 1 Pa Battery: -53 dB (2.2 mV) re 1V at 1 Pa |
| Maximum Input Sound Level | Phantom: 132 dB SPL, 1 kHz at 1% T.H.D. Battery: 121 dB SPL, 1 kHz at 1% T.H.D. |
| Dynamic Range | Phantom: 96 dB, 1 kHz at Max SPL Battery: 85 dB, 1 kHz at Max SPL (wired only) |
| Signal-to-Noise Ratio | 58 dB, 1 kHz at 1 Pa |
| Phantom Power Requirements | 11-52V DC, 2 mA typical |
| Battery Type | 1.5V AA/UM3 |
| Battery Current/Life | 0.4 mA / 2000 hours typical (alkaline) (wired only) |
| Switches | Off, on-flat, on-roll-off (wired only) |
| Weight | Microphone: 60 g (2.1 oz) Power module: 139 g (4.9 oz) |
| Cable | 4.6′ (1.4 m) long (permanently attached to microphone), 0.11″ (2.8 mm) diameter, 2-conductor shielded cable (termination dependent) |
| Dimensions | Microphone: 20.4 mm (0.80″) diameter Power module (wired only): 84.0 mm (3.31″) H x 63.0 mm (2.48″) W x 22.0 mm (0.87″) D Headset: 120.0 mm (4.72″) nominal at widest point, 80.5 mm (3.17″) flexible boom |
| Output Connector | Power module: Integral 3-pin XLRM-type (wired only) |
| Accessories Included | AT8531 power module (wired only); AT8439 clothing clip; AT8139L large windscreen; AT8139S small windscreen; battery (wired only) |
