The Shure Stem Audio Ceiling Microphone features a 100-microphone array with wide, medium, and narrow pickup beam options to configure the device for the size of your room.

Voice-activity detection and automatic tracking of the person speaking ensure intelligible speech capture. Automatic gain control adjusts the volume of people close to and far from the microphones, while adaptive echo cancellation, dereverberation, and background noise reduction ensure comfortable communication, free from distracting sounds.

Part of the Stem Audio ecosystem for conference rooms, the Stem Ceiling is an elegant, beamforming microphone array that easily mounts on the ceiling of your conference room.

Offering clear and highly intelligible speech capture with state-of-the-art sound quality that enhance the conferencing experience for all participants. This device connects to your local network with PoE+ (Power over Ethernet) or to a computer in meeting rooms, collaboration areas, and huddle rooms.
 
The Features
- Mounts On Ceiling for Conferencing
- 100 Mics-Wide/Medium/Narrow Beamforming
- Use Networked/Standalone with Computer
- Power over Ethernet (PoE+)
- Hanging or Flush Mount with Ceiling Tile
- Automatic Voice-Level Adjustment
- Noise Cancellation, Echo Canceling
 
The Specs
Compatible Operating Systems - Windows 98 and UpLinuxMac OS/macOS
Network Port 1 x RJ45, Full Duplex
Power Over Ethernet (PoE) 
PoE+ 802.3 Type 2PC Connectors: 1 x USB Type-B
Microphones 100 x Wide, Medium, Narrow Array
Echo Cancellation > 40 dB
Conversion Speed 40 dB/Second
Noise Cancellation > 15 dB
Frequency Response 50 Hz to 16 KHz
Broadcast Level 90 dB SPL at 1 kHz from 3.3' / 1 m, 5 W RMS
 
Included
Stem Audio Ceiling Conference-Room Beamforming Microphone Array
USB Type-A to Type-B Cable (12')
Cat 6 Ethernet Cable (15')
Metal Ceiling Tile (2')
Suspension Kit
Limited 2-Year Warranty
 
The Cable Length
Suspension Cable: 120" / 304.8 cm
Ethernet Cable: 15' / 4.6 m
USB Cable: 12' / 3.7 m
 
The Dimensions
Ceiling Microphone Diameter 21.5" / 54.6 cm
Height at Edge 0.5" / 1.8 cm
Height at Center 1.75" / 4.4 cm
Ceiling Tile 23.5 x 23.5 x 1.25" / 59.7 x 59.7 x 4.4 cm
 
The Weight
Ceiling Microphone 9 lb / 4.1 kg
Ceiling Tilen7.5 lb / 3.4 kg
 
The Package Info
Weight 18.745 lb
Box Dimensions
(LxWxH) 24.8 x 24.1 x 4.9"
 
Compliance
AS/NZS CISPR 32:2015EN 55032:2012/AC:2013VCCI 32-1FCC 15.109:2019FCC 15.109(g):2019ICES-003:2016 updated April 2017