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Wireless Omnidirectional USB Conference Room Mic and Speaker
P/N 35521
User's Manual
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SAFETY WARNINGS AND GUIDELINES
Please read this entire manual before using this device, paying extra attention to these
safety warnings and guidelines. Please keep this manual in a safe place for future reference.
This device is intended for indoor use only.
Do not expose this device to water or moisture of any kind. Do not place drinks or
other containers with moisture on or near the device. If moisture does get in or on
the device, immediately unplug it from the power outlet and allow it to fully dry
before reapplying power.
This device contains a Lithium-polymer battery. Dispose of this device only in
accordance with local, state, or federal regulations for electronic waste.
Recharge the battery backup at least once every three months to keep the battery
fresh and capable of holding the full charge.
Do not subject the product to extreme force, shock, or fluctuations in temperature
or humidity.
Do not expose this device to excessively high temperatures. Do not place it in, on,
or near heat sources, such as a fireplace, stove, radiator, etc. Do not leave it in direct
sunlight.
Clean using a soft, dry cloth only. Do not use chemical cleaners, solvents, or
detergents. For stubborn deposits, moisten the cloth with warm water.
This device has no user serviceable parts. Do not attempt to open, service, or
modify this device.
INTRODUCTION
This Wireless Omnidirectional USB Conference Room Mic and Speaker is a high quality
teleconferencing speakerphone for use with software or web-based conferencing systems.
It features noise suppression and echo cancellation of up to 256 milliseconds. It has a
3.5mm stereo output jack for use with headphones or external speakers. It uses a 2.4GHz
wireless USB connection for plug and play convenience with no driver installation required.
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FEATURES
Full duplex voice call technology for clear and simultaneous speaking and listening
Three built-in digital microphones use beamforming array techniques for
omnidirectional pickup of voices within 10 feet, while excluding sound picked up
from beyond 16 feet
Advanced echo cancellation and noise suppression
Speaker optimized for voice audio output
2.4GHz wireless technology allows for interruption-free transmission at distances up
to 32 feet
Internal 2600mAh lithium battery provides up to 10 hours of operation and fully
charges within 4 hours
3.5mm stereo output jack for use with headphones or external speakers
Compatible with Windows® 7/8/10, Mac® OS X®, Chrome OS™, and Linux® without
the need for drivers
Compatible with popular conferencing software and web applications
CUSTOMER SERVICE
The Monoprice Customer Service department is dedicated to ensuring that your ordering,
purchasing, and delivery experience is second to none. If you have any problem with your
order, please give us an opportunity to make it right. You can contact a Monoprice
Customer Service representative through the Live Chat link on our website
www.monoprice.com or via email at support@monoprice.com. Check the website for
support times and links.
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PACKAGE CONTENTS
Please take an inventory of the package contents to ensure you have all the items listed
below. If anything is missing or damaged, please contact Monoprice Customer Service for a
replacement.
1x USB conferencing speakerphone
1x USB dongle with antenna
1x USB wall charger
1x USB cable
1x User's manual
PRODUCT OVERVIEW
Front and Rear Views
1. Speaker
2. Omnidirectional Microphones
3. 3.5mm Audio Out
4. Mini USB Charging Port
5. USB Wireless Dongle
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Top View
Microphone
Mute
Momentarily press the button to turn the microphone
on/off. The LED illuminates orange when the mic is muted.
Speaker Mute
Momentarily press the button to turn the speaker on/off.
The LED illuminates orange when the speaker is muted.
Power
Press and hold the button for 3 seconds to turn the device
on/off. Momentarily press the button to display the
remaining battery life.
HiFi
Speaker Mode
Momentarily press the button to swap between Music
and Conferencing modes. The LED illuminates blue and
the microphone is muted when Music mode is selected.
1. LED Indicators
2. Control Buttons
BUTTON FUNCTIONS
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Volume Down
Momentarily press the button to decrease the volume.
The LEDs will momentarily illuminate blue to show the
volume level. When the minimum volume level is reached,
the first LED will flash blue.
Volume Up
Momentarily press the button to increase the volume. The
LEDs will momentarily illuminate blue to show the volume
level.
BATTERY STATUS
Momentarily press the Power button to display the remaining battery life, as shown in the
following chart.
CONNECTING TO A COMPUTER
1. Remove the cover from the USB plug on the included USB Wireless Dongle, then
plug the dongle into an available USB port on your computer. The computer should
automatically install the device and configure itself to use the speakerphone.
2. Press and hold the Power button on the speakerphone for about 3 seconds to
power it on. Wait for it to establish a connection with the computer. While the
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connection is being established, the three LED Indicators will flash blue. Once the
connection is established, the LED indicators will illuminate blue continuously.
3. If your computer does not automatically configure itself to use the speakerphone,
refer to one of the following sections, depending on your operating system.
Windows®
1. Right-click the task bar speaker icon, then choose Open Sound Settings.
2. Select Speaker (2.4GHz Audio Device) for the Output Device.
3. Select Microphone (2.4GHz Audio Device) for the Input Device.
4. If necessary, select the Speaker and Microphone in the conferencing applications
settings.
Mac® OS X®
1. Go to System Preferences > Sound.
2. Click the Output tab, then select 2.4GHz Audio Device.
3. Click the Input tab, then select 2.4GHz Audio Device.
4. If necessary, select the Speaker and Microphone in the conferencing applications
settings.
Chrome OS™
Select 2.4GHz Audio Device for the Microphone and Speaker in the conferencing
application.
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SPECIFICATIONS
Model
35521
Microphone Type
Full duplex omnidirectional microphone
Microphone Sensitivity
-22dBFS
Microphone Signal-to-Noise Ratio
60dB
Microphone Frequency Response
20Hz ~ 15kHz
Microphone Pickup Range
3 meter diameter optimal, maximum 5
meters
Echo Cancellation
Up to 256 milliseconds
Noise Suppression
>15dB
Sampling Rate
16kHz/48kHz
Wireless Frequency
2.4GHz
Audio Output
Built-in speaker or 3.5mm audio jack
Input Power
USB (5 VDC, 1A)
Battery Capacity
2600mAh
Battery Life
Up to 10 hours of talk time
Standby Battery Life
Up to 90 days
Charge Time
Up to 4 hours
Operating Temperature
+32 ~ +122°F (0 ~ +50°C)
Operating Humidity
0 ~ 95% RH, noncondensing
Dimensions
7.0" x 6.4" x 1.9" (178 x 162 x 47 mm)
Weight
15.0 oz. (425g)
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TECHNICAL SUPPORT
Monoprice is pleased to provide free, live, online technical support to assist you with any
questions you may have about installation, setup, troubleshooting, or product
recommendations. If you ever need assistance with your new product, please come online
to talk to one of our friendly and knowledgeable Tech Support Associates. Technical
support is available through the online chat button on our website www.monoprice.com
or through email by sending a message to tech@monoprice.com. Check the website for
support times and links.
WORKSTREAM™ and the WORKSTREAM logo are trademarks of Monoprice Inc.
Microsoft® and Windows® are either registered trademarks or trademarks of Microsoft
Corporation in the United States and/or other countries.
Apple®, Mac®, and OS X® are trademarks of Apple Inc., registered in the U.S. and other
countries.
Google™, Chrome™, and Chrome OS™ are trademarks of Google LLC.
Linux® is the registered trademark of Linus Torvalds in the U.S. and other countries.
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