Overview:

The Earthworks IM Series gooseneck microphones are designed for permanent installation in ceilings and tabletops for conferencing and other speech applications.
Performance
When capturing every word is critical, the IM microphones are the most reliable miking solution. Optimized for speech, the IM microphones feature a flat frequency response out to 30kHz that delivers the highest level of speech intelligibility and articulation. This means less straining to understand the words being spoken due to poor audio quality, so more time can be spent understanding the message being transmitted.   
Whether speaking directly on-axis or to the sides of the microphone, the IM microphone always reproduces the speaker’s voice with incredible clarity and intelligibility. This wider coverage also means that fewer Earthworks microphones are required to properly cover a conference room, cutting down on the number of channels of DSP, cables and other ancillary equipment required for the system. Compatible with all DSP systems that provide 24-48V phantom power, the IM microphones can easily integrate into existing system designs or new installations.
Construction
Designed with aesthetics in mind, the IM microphones feature a slim 0.375“ (9.5mm) gooseneck that allows precise positioning of the microphone for optimal coverage. The microphone flange measures just over 1.4 inches (36.5mm) wide and 0.125 inches (3.2mm) tall, mounting flush into the tabletop or ceiling.
Options
The IM microphones are available with a 3, 6, 10 or 12 inch flexible gooseneck. Black, white and silver finishes are available.

Features:

30kHz flat frequency response
No spotlighting
Uniform frequency response on or off axis
More gain before feedback
Picks up almost no sound from the rear of the microphone
Near perfect polar pattern
Mini-gooseneck allows quick and easy positioning
Black, white or silver finish on exposed sections
Available with 3, 6, 10 or 12 inch gooseneck
Primary applications include teleconferencing, distance learning, surveillance, boardrooms, government facilities, and ambient room miking

Specifications:

Frequency Response
 100Hz to 30kHz

Polar Pattern
 Cardioid

Sensitivity
 20mV/Pa (-34dBV/Pa)

Power Requirements
 24-48V Phantom, 10mA

Max Acoustic Input
 139dB SPL

Output
 XLR (pin 2+)

Output Impedance
 65? balanced (between pins 2 & 3)

Min Output Load
 600? between pins 2 & 3

Noise
 16dB SPL equivalent (A weighted)