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Unidirectional Dynamic Micr ophone
The Optimus Unidirectional Dynamic Microphone is a hi
vides the performance you need for your PA
or recordin
pattern allows a
the microphone and the sound source, while
reducin
Other features i nclude:
Frequency Response
wide ran
vide a more natural soun d.
Switch
crophone on and off at any time.
Unidirectional Pickup Pattern
feedback, reduces pickup of undesired si
nals, and provides increasd sensitivity in any
direction you point the microphone.
h-quality microphone that pro-
system. Its directional pickup
reater distance between
background noise and feedback.
— lets you pick up a
e of sound, from low to high, to pro-
— let’s you conveniently turn the mi-
— controls
OPERATION
1. Adjust the microphone volume on
your PA or recording system to minimum.
2. Plug your microphone’s 1/4-inch plug into
the microphone jack of your PA or
recordin
3. Turn on your PA or recordin
4. Set the microphone’s switch to
Adjust the microphone volume on your
PA or recordin
level. When you finish usin
phone, set the switch to the opposite
position of
-
system.
ON
Cat. No.
system to the desired
.
33-3021
system.
the micro-
ON.
Wire-Mesh Windscreen
down wind noise and voi ce “pops” so sin
and speakers can perform close to the microphone.
Internal Filter Design
back.
Swivel Adapter
standard
—positive action swivel to fit
5
/8 inch threads.
— effectively cuts
ers
— helps reduce feed-
1997 Tandy Corporation.
©
RadioShack is a trademark used by Tandy Corporation.
All Rights Reserved.
If you want to use the supplied swivel adapter with your microphone, screw it onto the
top of a microphone stand. Then sl ide the microphone into the lar
til it reaches the security position.
er end of the holder un-
1
© 1997 Tandy Corporation.
All Rights Reserved.

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SPECIFICATIONS
Type ............................................................................................................................. Dynamic
Directivity .............................................................................................................. Unidi rectional
Impedance ............ ......... ....... ...... ....... ....... ....... ...... ....... ....... ......... ...... ..... ....... 600 Ohms ± 20%
Sensit iv it y ....... ......... .......... .......... ................. .......... ......... –65 dBV ±4 dB (0 dB = 1V Microbar)
Frequency Response ............ .. ................... ........................... ........................... ... 60–16,000 Hz
3
Cable.........................................................12 feet (3 .67 m) Length ×
1
Plug ............................................................................
/4 Inch (6.35 mm) Diameter Phone Plug
Accessory ...................... ........................... .. ........................... ...................... M icrophone Holder
Net Weight .......................................................................................................... 10.2 oz (290 g)
Specifications are typical; individual units might vary. Specifications are subject to change and
improvement without notice.
Frequency Response Curve
/16 Inch (5 mm) Diameter
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This product is warranted by RadioShack against manufacturing defects in material and workmanship under normal use for ninety (90)
days from the date of purchase from RadioShack company-owned stores and authorized RadioShack franchisees and dealers. EXCEPT AS PROVIDED HEREIN, RadioShack MAKES NO EXPRESS WARRANTIES AND ANY IMPLIED WARRANTIES, INCLUDING
THOSE OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE LIMITED IN DURATION TO THE DURATION
OF THE WRITTEN LIMITED WARRANTIES CONTAINED HEREIN. EXCEPT AS PROVIDED HEREIN, RadioShack SHALL HAVE NO
LIABILITY OR RESPONSIBILITY TO CUSTOMER OR ANY OTHER PERSON OR ENTITY WITH RESPECT TO ANY LIABILITY,
LOSS OR DAMAGE CAUSED DIRECTLY OR INDIRECTL Y BY USE OR PERFORMANCE OF THE PRODUCT OR ARISING OUT OF
ANY BREACH OF THIS WARRANTY, INCLUDING, BUT NOT LIMITED TO, ANY DAMAGES RESULTING FROM INCONVENIENCE,
LOSS OF TIME, DATA, PROPERTY, REVENUE, OR PROFIT OR ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL
DAMAGES, EVEN IF RadioShack HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
Some states do not allow the limitations on how long an implied warranty lasts or the exclusion of incidental or consequential damages,
so the above limitations or exclusions may not apply to you.
In the event of a product defect during the warranty period, take the pr oduct and the RadioShack sales receipt as proof of purchase
date to any RadioShack store. RadioShack will, at its option, unless otherwise provided by law: (a) correct the defect by product repair
without charge for parts and labor; (b) replace the product with one of the same or similar design; or (c) refund the purchase price. All
replaced parts and products, and products on which a refund is made, become the property of RadioShack. New or reconditioned parts
and products may be used in the performance of warranty service. Repaired or replaced parts and products are warranted for the remainder of the original warranty period. You will be charged for repair or replacement of the product made after the expiration of the
warranty period.
This warranty does not cover: (a) damage or failure caused by or attributable to acts of God, abuse, accident, misuse, improper or abnormal usage, failure to follow instructions, improper installation or maintenance, alteration, lightning or other incidence of excess voltage or current; (b) any repairs other than those provided by a RadioShack Authoriz ed Service Facility; (c) consumables such as fuses
or batteries; (d) cosmetic damage; (e) transportation, shipping or insurance costs; or (f) costs of product removal, installation, set-up
service adjustment or reinstallation.
This warranty gives you specific legal rights, and you may also have other rights which vary from state to state.
RadioShack Customer Relations, Dept. W, 100 Throckmorton St., Suite 600, Fort Worth, TX 76102
Limited Ninety-Day Warranty
We Service What We Sell
3/97
01A99 Printed in Hong Kong