MDHearing OHM User manual

User Manual
OHM
v05.20

Congratulations
With the OHM, you are back in control of the sounds
around you, thanks to digital, rechargeable technology,
paired with user-adjustable controls.
Please read this User Manual in its entirety.
Practice and patience are important as your ears relearn
how to hear. Your results, and improved quality of life,
will depend on your hearing, your expectations, and
your frequency of use.
“
Very user friendly
and great quality! Not
having to worry about
batteries is a big plus.
— Betsy C.

We’re here to help.
Our U.S.-based hearing instrument specialists are
the heart and soul of MDHearing. They’re happy
to guide and assist you with any questions you
may have. Take advantage of our free one-on-one
phone consultations.
“
The customer
service has been
outstanding. They
continue to solve
the problem and
give solutions.
— Joan P.
800-823-9819
Mon.—Fri. 8:00am—4:30pm (CST)
[email protected]
24 hours a day, 7 days a week

Package Contents...........2
OHM Diagram ..............3
Quick Start Guide ...........4
Charge ....................5
Turn On....................7
Place On Ear ...............8
Adjust Volume..............9
Program Selection .........10
Care and Cleaning .........11
Replacing Tips and Tubing..13
Troubleshooting ...........17
Warranty and Repair .......21
Return Policy..............23
Warnings .................25
Technical Specifications ....26
Table of Contents Package Contents*
*Contents will vary depending on quantity ordered.
c) Cleaning Tool Wire Magnet Brush
a) OHM Device(s) b) Charger
Thin Tubing
ComfortTIP™
Dock
Cord
Power
Adapter
2

OHM
Body
OHM Diagram
Microphones
Program Button
& Charging Light
(on/o control)
Thin Tubing
OHM comes assembled for your convenience.
ComfortTIP™
Tubing Base
Volume Dial
Stabilizer Bar
Snap End
Charging Port
Le OHM in
le hand.
Right OHM in
right hand.
Quick Start Guide
Three Easy Steps for Using Your MDHearing OHM
If you have a pair, first identify the le and right device.
Step 1: Charge OHM
Step 2: Turn OHM on
Step 3: Place OHM on ear
To identify le/right OHM: Hold an amplifier upright in each hand, with controls facing
you. The tips/tubing point toward each other when in the correct hand.
3 4

1
a) Plug charging dock into a standard outlet.
b) Place OHM on the charging dock. Blue light
will turn on.
c) When fully charged, blue light will turn green
and OHM is ready to use.
*b)
a)
c)
Charger Information
The charging dock is magnetic—simply place OHM
on it forward or backward. It will turn o automatically
and start to charge. A sensor stops the charging
process once the battery is full, so there is no risk
of battery degeneration if OHM is le on the charger.
Charger Assembly:
The charger is made up of three pieces: a cord,
a power adapter, and a charging dock.
1. Connect charging dock to the small end of the cord.
2. Connect the other end of the cord (USB) to the power adapter.
Blue Light = Charging
Green Light = Fully Charged
Light O = Not Charging
*It takes approximately 3–3.5 hours to fully charge the OHM.
On average, a full charge lasts 18–22 hours.
1)
2)
Charging
Dock
Cord
(small end)
Cord
(USB end)
Power
Adapter
Step 1: Charge OHM
Please note: If the charging light on OHM turns red,
unplug and replug in the charging dock.
5 6

3
ý
þ
Step 3: Place On Ear
Prevent ComfortTIP™from coming o in ear.
Always verify the tip is pushed all the way on
tubing before inserting tip in ear.
a) Hold thin tubing at the stabilizer bar
junction. Insert ComfortTIP with gentle
pressure into ear canal.
b) Place OHM body behind ear. The curve of
thin tubing should rest on top of your ear
comfortably (next to glasses).
c) Tuck stabilizer bar in the outer bowl of ear.
It may be trimmed to suit the size of your ear.
b)
a)
c)
2
Step 2: Turn On
The OHM’s program button also functions as
the on/o control.
• ON: Press and hold the program button for
2–3 seconds. The light will flash green once
when turned on.
• OFF: Press and hold the program button for
2–3 seconds. The light will flash blue once
when turned o.
OFF
ON
Flashes
green
Flashes
blue
7 8

Program Selection
To change programs, press the program button.
Beeps will indicate a program change.
Experiment with these programs at various volumes
to find what combinations work best for you.
Watching TV and time with family at home.1. Quiet*
Program Best For
Adjust Volume
The OHM uses a volume dial with numbers from
1 (minimum) to 4 (maximum).
• To increase volume, rotate volume dial up.
• To decrease volume, rotate volume dial down. Decrease
Increase
Caution! To avoid a sudden blast of sound, please
raise the volume SLOWLY.
Please note: Whistling may be heard if the OHM is
turned on but not positioned securely in your ear.
Once the ComfortTIP is properly inserted, whistling
will stop.
Beeps
2. Social
3. Noisy
4. Restaurant
1 beep
2 beeps
3 beeps
4 beeps
Small group meetings, church, time with friends.
Large crowds, restaurants, traic, nature sounds,
or high octave music.
Reduce background noise in any loud
environment and hear directly in front of you.
*Program 1 is the default setting. When OHM is turned o, it will reset to Program 1.
9 10

Care and Cleaning
Daily Cleaning:
Use the cleaning tool brush to
remove debris from ComfortTIP™,
microphones, and buttons.
Regular Cleaning:
Use the cleaning tool wire to remove debris from tubing.
a) Remove tubing (see page 14).
b) Thread wire through
tubing base and out of tip.
c) Wipe end of wire clean
and repeat as necessary.
d) Reattach tubing to OHM body.
Tips for optimal performance:
• Avoid physical shock, such as dropping it on the floor.
• Store in a cool dry place, such as a hearing aid dehumidifier.
• For maximum battery life, charge OHM until blue light turns
green with each charge.
• Do not let your OHM get wet.
• Do not use hair spray or a hair dryer while wearing your OHM.
• Do not expose your OHM to excess moisture or heat.
ComfortTIP Microphone Buttons
11 12

a)
Left
Right
Replacing Parts
Tips and tubing are le and right ear specific.
Thin Tubing:
The blue label indicates le ear.
The red label indicates right ear.
ComfortTIPs™:
Le ear tips curve the le.
Right ear tips curve to the right.
Replacing Tubing
a) Remove tubing: Rotate tubing base 90°
and slide o.
b) Attach tubing: Gently push new tubing on.
c) Make sure tubing base is flush with sides of
OHM body when you are finished. b)
c)
Left Right
If you require a dierent size, you’re not getting
enough volume, or you’re experiencing whistling
at higher volumes, please call 800-823-9819 for
alternative options.
Please note: Thin tubing is le
and right ear specific.
13 14