Introduction - Azden IRR-40P User Manual

IRN-20 MICROPHONE/TRANSMITTER
The IRN-20 microphone/transmitter may be substituted for the IRN-10 in Azden's classroom
systems that use IRR-30P and IRR-40P receivers. Operation of the IRN-20 is very similar to that
of the IRN-10 with one main additional feature: the IRN-20 has a remote volume control which
may be used to increase or decrease the volume of the speaker's voice over the system. This
volume control feature will only work when using the IRR-40P receiver.
It should also be noted that the IRN-20 requires a different charger than the one that works with
the IRN-10. If you would like to add the IRN-20 to your system, be sure to order the compatible
BC-31 charger.
IRN-20 Features
Remote volume control (with IRR-40P only)
Operates on just 1 AA battery, either alkaline or rechargeable NiMH
Uses two microphones for a wide pick-up pattern; provides a constant volume level as
the user's head is turned from side to side
Auxiliary input jack (3.5mm stereo) allows for audio playback from smartphones, tablets,
computers, DVD players, etc.
LED status indicator lets the user know when the battery needs charging, or is charged.
External microphone jack
Includes adjustable neck strap
For more information on the IRN-20 please contact your Azden dealer or the Azden sales
department at sales@azden.com.
6
IRN-20

INTRODUCTION

Thank you for selecting the Azden INFRARED system as your wireless classroom solution. We are
confident that it will perform beyond your expectations. For over 50 years Azden Corporation has been
creating technologically advanced products. By taking advantage of the latest in CAD design and SMT
production techniques, Azden's engineers are able to produce products that exceed the published
specifications and perform well beyond the warranty period.
Azden INFRARED represents a breakthrough in wireless: Instead of the normal radio waves that other
wireless systems use, Azden INFRARED uses invisible light beams in the infrared range. INFRARED's
enhanced performance assures you of the finest in audio clarity and reliability. The specially selected
high-frequencies provide you with trouble free performance, even in fluorescently lit classrooms.
Infrared (IR) wireless microphone systems are the best solution for classrooms. In today's RF
saturated world a regular (VHF or UHF) microphone system risks interference from a variety of
other devices and sources. Cell phones, radios, TV, PA systems, police and emergency service
systems, etc., can all interfere with VHF and UHF - but not with IR. Furthermore, infrared is perfect
for classroom audio since, unlike the other systems, IR is short-range and cannot penetrate walls.
This means that your school can have as many classrooms as desired with individual audio
systems, without fear of interference. Since the Azden system is dual-channel, a teacher can have
one microphone and a second person can have another microphone. In addition, since each
classroom system is on the same pair of channels, teachers can go from room to room without
having to switch microphones.
In the real world, the ability to use multiple systems in the same location without frequency interference will
prove to be a tremendous benefit to you. Using infrared means that the audio generated in your
classroom stays in your classroom. Your discussions cannot be overheard on other systems in other
classrooms.
Designed by professionals - for professionals, Azden INFRARED will provide you with years of worry-
free, high-quality performance.
ii