USB Desktop Podcast Condenser Microphone
AU-903 USB Desktop Podcast Condenser Microphone This recording
condenser microphone comes with a 3.5mm headphone jack that allows
you to listen to what you're recording. The Microphone with volume
control allows easy input level adjustment, particularly good for video voiceovers,
podcasts... 
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Specification:

Power Requirements: USB Powered

Transducer Type: Dia.14mm Electret Condenser

Polar Pattern: Omni-directional & Cardioid

Bit Depth: 16bit

Sampling Rate: 44.1kHz/48kHz, can be upgraded to 192kHz/24bit

Frequency Range: 30Hz ~ 18kHz

Maximum SPL: 120dB

THD: 0.5% at 1kHz

Headphone Plug: 3.5mm