The AC-404 is designed to capture crystal clear speech intelligibility for web conferencing and more with easy plug-and-play USB connectivity. Three microphone capsules in a surface-mount boundary design deliver an amazing 180 degree pickup pattern with a 25′ range making it ideal for conference rooms, podiums, courtrooms, and connected classrooms. The low profile durable design is now available in white and black, and is designed to simply rest on any flat surface so it’s both discrete and convenient for every day use.

Mic type

USB boundary microphone


3 capsule boundary design with 180-degree coverage

Frequency response

40 Hz – 16 kHz

Polar pattern

Wide cardioid

USB compatibility

USB 1.1 and 2.0


109mm x 76 x 51mm / 4.3in. x 2.95in. x 2in.

Use case

180° pick up pattern I 25FT / 7.62M range

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