tweak ENHANCE User manual

enhance otc user manual

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This OTC hearing aid is for users who are 18 and older. People who are younger than 18 with hearing loss should
see a doctor, preferably an ENT, because they may need medical testing and management. Hearing loss can affect
speech and learning, so professional fitting and continuing care are also important.
WARNING: When to See a Doctor
If you have any of the problems listed below, please see a doctor, preferably an ear-nose-throat doctor (an ENT).
• Your ear has a birth defect or an unusual shape. Your ear was injured or deformed in an accident.
• You saw blood, pus, or fluid coming out of your ear in the past 6 months.
• Your ear feels painful or uncomfortable.
• You have a lot of ear wax, or you think something could be in your ear.
• You get really dizzy or have a feeling of spinning or swaying (called vertigo).
WARNING: If you are younger than 18, do not use this.
You should go to a doctor, preferably an ear-nose-throat doctor (an ENT), because your condition needs
specialized care. Over-the-counter hearing aids are only for users who are age 18 or older.
Warnings

• Your hearing changed suddenly in the past 6 months.
• Your hearing changes: it gets worse then gets better again.
• You have worse hearing in one ear.
• You hear ringing or buzzing in only one ear.
WARNING: This hearing aid should not cause pain when inserting it.
Remove this device from your ear if it causes pain or discomfort when you insert or place it. To try again, make
sure to follow the instructions. If you feel pain or discomfort again, contact the manufacturer. If your pain or
discomfort doesn’t go away, contact your hearing healthcare professional. You can also report this to FDA as
an adverse event according to the instructions that appear later.
WARNING: You have active implantable devices.
If you have active implantable devices (such as a pacemaker), keep magnets (charging base) at least 6
inches away from the active implant. Tweak recommends you always follow the guidelines of the implant
manufacturer. If you suspect any interference to your implant, immediately discontinue use of electronic
devices, including hearing aids. Contact implant manufacturer and Tweak Hearing to report the suspected
interference.
WARNING: Electromagnetic testing
Prior to any CT, MRI scans or other electromagnetic procedure, remove your hearing aids.
Caution: This is not hearing protection.
You should remove this device if you experience overly loud sounds, whether short or long-lasting. If you’re in
a loud place, you should use the right kind of hearing protection instead of wearing this device. In general, if
you would use ear plugs in a loud place, you should remove this device and use ear plugs.
Caution: The sound output should not be uncomfortable or painful.
You should turn down the volume or remove the device if the sound output is uncomfortably loud or painful.
If you consistently need to turn the volume down, you may need to further adjust your device.

Caution: You might need medical help if a piece gets stuck in your ear.
If any part of your hearing aid, like the eartip, gets stuck in your ear, and you can’t easily remove it with your
fingers, get medical help as soon as you can. You should not try to use tweezers or cotton swabs because
they can push the part farther into your ear, injuring your eardrum or ear canal, possibly seriously.
Note: If you remain concerned, consult a professional.
If you try this device and continue to struggle with or remain concerned about your hearing, you should
consult with a hearing healthcare professional.
Also if you experience side effects from wearing the hearing aids, contact a hearing healthcare professional.
Possible side effects may be: dizziness, tinnitus, perceived worsening of hearing loss, nausea, headache, skin
reaction, or excessive ear wax accumulation.
Note: What you might expect when you start using a hearing aid
A hearing aid can benefit many people with hearing loss. However, you should know it will not restore normal
hearing, and you may still have some difficulty hearing over noise. Further, a hearing aid will not prevent or
improve a medical condition that causes hearing loss.
People who start using hearing aids sometimes need a few weeks
to get used to them. Similarly, many people find that training or
counseling can help them get more out of their devices.
If you have hearing loss in both ears, you might get more benefit from
using hearing aids in both, especially in situations that make you tired
from listening—for example, noisy environments.
Note: Tell FDA about injuries, malfunctions, or other adverse events.
To report a problem involving your hearing aid, you should submit
information to FDA as soon as possible after the problem. FDA calls
them “adverse events,” and they might include: skin irritation in your
ear, injury from the device (like cuts or scratches, or burns from an
overheated battery), pieces of the device getting stuck in your ear,
suddenly worsening hearing loss from using the device, etc.
SYMBOL DESCRIPTIONS
Caution / Warning
This symbol indicates there
are specific precautions or
warnings associated with the
OTC hearing aids.
Important Information
This symbol indicates
important information about
handling and product safety.
Consult User Manual
for details about using the
OTC hearing aid.
Instructions for reporting are available at https://www.fda.gov/Safety/MedWatch or call
1-800-FDA-1088. You can also download a form to mail to FDA.

Congratulations on your Tweak® purchase. Tweak Enhance™ is an over-the-counter (OTC) hearing aid. We know your
new Tweak will soon be indispensable to you. With amazing sound quality, Enhance delivers both confidence and
comfort so that you never miss a moment!
Tweak Enhance is a sophisticated OTC hearing aid utilizing innovative technology. This unique device allows you to
congratulations
select and set your desired amplification setting from a range of acoustic
alternatives.
Developed by an audiologist in conjunction with a team of acoustic
engineers, Tweak Enhance can help you hear better in group settings,
restaurants, theaters, meetings, and other environments where you have
difficulty hearing.
Read entire user manual before using Tweak Enhance OTC hearing aids.
Doing so will ensure you know how to operate the hearing aids correctly.
Download a copy of this manual at www.tweakhearing.com/support
If you have questions
about using
Tweak Enhance OTC
hearing aids, call us at
1-888-815-3240 or visit
www.tweakhearing.com

table of contents
warranty / cautions
intended use ........................ 13
box contents ........................ 14
tweak enhance components ....... 16
charging information ............... 20
low battery warning ................ 25
preparing for use ................... 26
sound tubes ....................... 26
choosing the proper dome/tip .... 27
connecting the tube and
dome/tip .......................... 28
dome/tip insertion depth .......... 26
wearing tweak enhance ............ 30
using tweak enhance ................. 46
turning on and off ................. 46
volume control ..................... 49
memory switch .................... 50
care ................................... 51
cleaning the exterior ............... 51
cleaning the tip and tube .......... 52
changing the tube and tip ......... 53
extended storage .................. 54
enhance tips .......................... 55
troubleshooting ...................... 56
warranty and service ................. 60
repairs and replacements ............. 61
technical information ................. 62
regulatory and legal .................. 65
owner information .................... 71
app guide ....................... 33
download the app ..................... 36
before you begin ...................... 37
open the app ......................... 38
connect .............................. 39
using the app .......................... 40
control ............................... 40
more options ......................... 41
archive ............................... 42
device options ....................... 43
resetting ............................. 44
menu button ......................... 45

13
intended use
Intended Use
Tweak Enhance OTC hearing aids are intended to
address perceived mild-to-moderate hearing loss in
people aged 18 or older.
Indications for Use
Tweak Enhance OTC hearing aids are intended to
address perceived mild-to-moderate hearing loss
in people aged 18 or older. OTC hearing aids offer
cost savings for consumers who wish to buy lower
cost hearing aids without professional services.
Due to software and
firmware updates,
content in this user
manual may be
different than what’s
shown in the Tweak
Enhance OTC app.
Refer to the app for
the most up to date
information.

enhance otc user manual
TW ENHN OTCQSG 0623 Rev A
red light on base– fault
in the instrument,
base, cable, or adapter
Call1-888-815-3240 for
assistance.
ON
ON
ON
or
or
OFF
OFF
Level1 Level2 Level3
Level4
MAXVolume
Beep Beep Beep 2Beeps
Level1 Level2 Level3
Level4
MAXVolume
Beep Beep Beep 2Beeps
tweak hearing tweakhearing.com
|1-888- 815-3240 |[e-mail]
Program Suitablefor Indicator
1Conversation 1Beep
2Restaurant 2 Beeps
3Traffic 3Beeps
4Outdoor 4 Beeps
connecting tube and dome/tip
wearing tweak enhance otc
download tweak enhance otc app
using tweak enhance otc
charging information
1Choose either a left
or right sound tube.
BLUE:Le ft RED: Right
1Plug
the
type-C USB
connector into
the charging base.
3The charging base is marked with blue and red
circles. Place amplifier in the corresponding
port. it will shut off automatically when placed
in the charger.
The rockerswitch will glow blue while
charging.When fully charged, the rocker
switch will glow green.
green light on base–
normal operation
left
ear right ear
2Attach tube
connector end
to sound post on
amplifier.Twist tube
clockwise until snug.
sleeve
tip 12
mm 9 mm 12 mm 9 mm
closed
domes
vented
domes
3Choose dome/tip
to use with sound
tube.
1PlaceTweak Enhance
over your ear.The
curve of the sound
tube should rest
on top of your ear
comfortably, even
with glasses.
1Using your smartphone, search for
TweakEnhance OTC app in the App Store
or Google Play store.
2Download Tweak
Enhance OTCapp to
your smartphone.
2Grab the loose end
of the tubing and
gently insert the tip
into the ear canal.
3Position the
retaining lock in the
bowl of the ear.
4 When properly
inserted, the tubing
will lay close to the
head around the
front of the ear and
into the ear canal.
Check this by moving
your finger down the
tubing, into the ear.
TurningON and OFF VolumeControl
Memory Switch
Toturn ON or OFF, press and hold the upper
portion of the rocker switch until you hear a
beep (approx. 3 seconds) then release.While
you are holding the rocker switch, it will turn
green.The green light will turn off once the
amplifier is ON.
Toturn OFF, press and hold the upper portion
of the rocker switch until you hear a beep
(approx. 3 seconds) then release.While you are
holding the rocker switch, it will turn blue.The
blue light will turn off once the amplifier is OFF.
ON —
rocker switch will ash
green;
power is ON
OFF —
rocker switch will ash
blue then shut o
The rocker switch
is used as a volume
control. Pressingthe
upper portion of the
rocker switch increases
the volume, while the
lower portion reduces
the volume.
When the hearing instrument is turned ON, it will
revert to the last program and volume setting.
4Align tip with end
of sound tube and
push tip straight on.
Program1
Program2
Program3
Program4
2Plug the
opposite end
of the cable
into adapter
block then
connect with power
source.
Fully chargeTweak Enhance before
proceeding to setup.
As you increase/
decrease the volume,
you will hear beep
sounds for each sound
level.
THIS QUICK STARTGUIDE WILL HELP YOU SET UP ENHANCE OTC HEARING AID.
READTHE USER MANUAL INCLUDEDWITH THIS OTCHEARING AID FOR COMPLETE INFORMATION.
Toswitch programs, press and hold the lower
portion of the rocker switch for two seconds
then release. Do the same to switch to the other
programs.
Referto the APP GUIDE inside the user manual to set up Tweak Enhance OTC hearing aids using the Tweak Enhance OTCapp.
enhance otc quick start guide
DETACHAND MAIL
enhance otc warranty
TWENHN WARR0521 Rev A
tweak enhance™warranty and service– NORTH AMERICA
The manufacturer’s warranty period is 6 months.
This warranty covers any defect in material or faulty production, specifically
excluding batteries, tips, and tubes. Any and all warranties are invalidated
if the TweakEnhance instrument has been tampered with or altered in any
way,if the ser ial number has been alteredor removed, or if any repairs have
been made without authorization. The manufacturer reserves the right to
repair or replace the instrument or any defective part, at manufacturer’s
expense, within the limits of the warranty.
Thiswar ranty does not include a promise of specific listeningimprovement.
Warranty service must only be performed by an authorized service center.
Service performed by any unauthorized personnel voids all warranties. If
service is needed, consult your retailer or call 1-888-815-3240.
tweak enhance extended warranty offer–
NORTH AMERICA
Mail the following:
• Completed form below;
• Copy of your itemizedsales receipt(s) for the Tweak and concurrent purchase of a DryBoost UV
appliance.Remember to keep copies of the sales receipt(s) for your records;
• Completed warranty card from the DryBoost UV appliance.
ATTN: TWEAKENHANCE EXTENDED WARRANTY OR fax to
P.O.BOX1178, JOHNSON CITY, TN 37605 423.928.0515
NAME _______________________________________________________________________________________________
ADDRESS_____________________________________________________________________________________________
CITY,STATE, ZIP ________________________________________________________________________________________
PHONE ______________________________________________________________________________________________
EMAIL _______________________________________________________________________________________________
TWEAK PURCHASE DATE: ________________________________________________________________________________
BUSINESSNAME OF RETAILER: ____________________________________________________________________________
❏SERIALNUMBER on TWEAK :
LEFT __________________________________________ RIGHT____________________________________________
❏SERIALNUMBER of DRYBOOST UV APPLIANCE: _____________________________________________________________
tweak enhance extended warranty
completion form – NORTH AMERICA
Totake advantage of the Tweak Enhance Extended Warranty Offer, followthe instruc tion
below.This original form must be submitted within 30 days of your Tweak purchase date.
Moisture is the number one enemy of all PSAPs.The
manufacturer of Tweak recommends daily use of a
DryBoost UV®appliance to care for your new PSAP.
A 6-month warranty extension (minimum value $125)
is provided at no charge with the user’s validated
purchase and regular use of a DryBoost UV appliance.
These products may be purchased at yourTweak
retailer or tweakhearing.com
Toqualify for the Tweak Enhance Extended Warranty,
follow the instructions in the section below. Extended
warranties are not transferrable.
Lookingfor more dr ying options? Visit dryandstore.com
14 box contents 15
sound domes/tips (5)
tweak enhance otc
hearing aid (1) sound tubes (2)
box contents
Contents shown represent a single hearing aid. A pair of hearing aids includes 10 sound domes/tips,
and 4 sound tubes. All other items remain at the single device quantity.
cleaning line (5)
carrying case (1)
charging base (1)
power block (1)
tweak enhance otc manuals
power cable (1)
Accessories Description
Tweak Enhance OTC
hearing aid
Amplifies sounds picked up by the microphones
Sound tubes Size 2B, left and right. Connects your dome to the hearing aid;
sound travels through the tube and dome into the ear canal.
Sound domes/tip Multiple sizes. Attaches to sound tube; helps to guide sound
into the ear
Carrying case Store your hearing aids inside when they’re not in use
Cleaning lines Used to remove wax from inside the sound tube
Charging base Charges your OTC hearing aids
Power cable Full-size USB on one end with USB-C on the other. Used with
charging base to charge your OTC hearing aids.
Power block Used with charging base and power cable to charge your OTC
hearing aids
Tweak Enhance OTC
manuals
User manual, quick start guide, and warranty

17
tweak enhance components
thin sound tube
vented dome
retaining lock
sound post
tube connector head
rocker switch /
volume control
and change
program
hearing aid
case
microphone port 1
microphone port 2
tweak enhance components Components Description
Sound post Amplified sounds exit the hearing aid through sound post; sound tube attaches to the
sound post, and sound travels through the tube and dome into the ear canal.
Microphones Pick up sounds to be amplified by the hearing aid
Rocker switch Press to change between listening programs. Also used as a volume control—makes
sounds louder or softer as needed
Tube connector head End of the sound tube that attaches to sound post on the hearing aid
Thin sound tube Connects to the hearing aid and carries sound to the dome and into the ear canal
Vented dome Attaches to the sound tube; helps to guide sound into the ear
Retaining lock Sets in the bowl of the ear to keep sound tube and dome positioned correctly
Use ONLY components included with your Tweak Enhance.
Replacement tips/domes and tubes are available at tweakhearing.com
Use ONLY components included with your Tweak Enhance.
Replacement tips/domes and tubes are available at

Conversation
Traffic
RestaurantOutdoor
Tweak Enhance is a
rechargeable OTC
hearing aid. You’ll
discover Tweak Enhance
is like having four hearing
aids in your ear.
The hearing aid has
four listening modes:
Conversation, Restaurant,
Traffic, and Outdoor.
introduction

20 charging information 21
Tweak Enhance is powered by a lithium polymer battery that is rechargeable. It’s
best to charge your hearing aid completely prior to each use.
When not in use, turn off the hearing aid to prevent unnecessary battery drain or
leave it in the charging base. See page 46 for instructions on turning power on/off.
CHARGING TIME / BATTERY LIFE
Time to fully
charge Approximately 3 hours
Battery life
of full charge
Approximately 20 hours
Keep in mind some functions of the hearing aid (volume
level, noise compression, etc.) require more energy than
others. You may find the battery needs recharging sooner
than 20 hours.
1Tweak Enhance
comes with a
charging base,
power block and
power cable. The
cable provided has
a USB-C connector
on one end that
plugs into the
charging base.
1 2
2The opposite end
of the cable has a full-size
USB connector. Plug this cable end
into adapter block then connect with power source.
Enhance hearing aids
have a nonremovable
lithium-polymer
battery. Your hearing
aids can be taken onto
airplanes in carry-on
luggage.
charging information

BLUE: Left RED: Right
22 charging information 23
The charging base is marked with blue and red circles.
Place each instrument in the correct port. Match the
colored text on the sound tube with the correct port.
Fully charge Tweak Enhance before proceeding to
setup. The hearing aid battery will be fully charged in
about 3 hours. Leaving the device in the charging base
will not damage the battery. It will not overcharge.
charging information continued
Place the hearing aid in
the charging base. If the
hearing aid is on, it will
shut off automatically
when placed in the
charger. The rocker
switch will glow blue
while charging. When
fully charged, the rocker
switch will glow green.
The lithium polymer battery should not be removed by the user. The battery must
be replaced by the manufacturer. Call 1-888-815-3240 for assistance.
be replaced by the manufacturer. Call

x 3
every 4 minutes
once hearing
aid shuts off
25
low battery warning
24 charging information
red light on base —
fault in the instrument, base, cable or adapter
Call 1-888-815-3240 for assistance.
green light on base —
normal operation
Voltage Status Indicator
charging information continued low battery warning
Once the voltage drops to 3.45V, you will hear
three beeps every 4 minutes, which indicates it’s
time to charge the hearing aid.
When the battery voltage falls to 3.12V, Tweak
will automatically shut down. Charge the
hearing aid immediately.
charge immediately
time to charge hearing aid
The battery life of a full charge is approximately 20 hours.
Keep in mind some functions of the hearing aid (volume
level, noise compression, etc.) require more energy than
others which depletes the battery more quickly.
The battery life of a full charge is approximately 20 hours.
Keep in mind some functions of the hearing aid (volume
level, noise compression, etc.) require more energy than

26 preparing for use 27
Sound Tubes
Tweak Enhance comes with two standard sound tubes (size 2B, left and right). Tubes
are marked with red lettering for the right ear and blue lettering for the left ear.
There are a variety of domes/tips included with your
hearing aid. The sleeve tip will work for most users.
However, for more bass sound use a vented or
closed dome.
sleeve tip 12 mm
12 mm 9 mm 9 mm
closed domes
right
ear
left
ear
vented domes/tip
sound tubes
Choosing the Proper Dome/Tip
When choosing the proper dome/tip, the goal is to get a fit that is comfortable
and secure enough to keep domes/tip in the ear. Larger domes will create a more
snug fit and increase the bass sounds (lower frequencies) and reduce feedback.
Domes/Tips Description
Closed dome Closed domes do not have holes in them and are used
when the hearing aid seems too quiet. They can also help
to prevent your hearing aids from “whistling” at higher
volumes.
Open dome Open domes have holes in them, to prevent the ears
from feeling blocked. This type of dome can help in cases
where your own voice seems too loud or the hearing aid
seems too noisy.
Sleeve tip The sleeve tip fits most users. Try it first.
Replacement tubes and
tips can be ordered online
at tweakhearing.com or by
calling 1-888-815-3240.
Replacement tubes and
preparing for use

29
28 preparing for use
Connecting the Tube and Dome/Tip
1Choose either the left or right sound tube (pictured on
page 26).
2Align the sound tube connector end with the sound post
on the hearing aid. Twist the tube clockwise onto the
sound post until it’s snug.
Be sure it is securely fastened to the sound tube before
inserting it in your ear.
3Choose a dome/tip to use with the sound tube (pictured
on page 27).
2
4
Adult canal
length
varies
0.9-1.1”
(23-28mm)
Insertion depth =
0.37” (9.5mm) max
Good
Fit Too Small
Adult canal
length
varies
0.9-1.1”
(23-28mm)
Insertion depth =
0.37” (9.5mm) max
Dome/Tip Insertion Depth
The dome/tip should be completely in the ear
canal without touching the eardrum. Proper
insertion of the dome/tip is key to getting
adequare loudness with no feedback (“whistling”).
For adults, the length of the ear canal varies from 0.9”to 1.1”.
The maximum insertion depth is 0.37”. While wearing the
hearing aid, the distance from the dome/tip to the eardrum
is at least 0.53”. This is greater than the lower limit of 0.39”as
specified by OTC guidelines, meaning there is more space
between the dome/tip and eardrum.
4Align the dome/tip with the end of the sound tube and push it straight on.
preparing for use continued

30 wearing tweak enhance 31
1Place Tweak Enhance
over your ear. The
curve of the sound
tube should rest
on top of your ear
comfortably, even
with glasses. 123 4
3Position the
retaining
lock in the
bowl of the
ear.
4When properly inserted,
the tubing will lay
close to the head
around the front of the
ear and into the ear canal.
Check this by moving
your finger down the
tubing, into the ear.
2Grab the loose end of
the tubing and gently
insert the tip into the
ear canal.
If the tip doesn’t stay in your ear, you may need a different length sound tube.
Additional sizes are available at tweakhearing.com or by calling 1-888-815-3240.
wearing tweak enhance

APP GUIDE
using the app to
program your devices

APP GUIDE
35
Due to improvements made to the app over time, your
app may look and act differently from what is shown in
this manual. If so, follow the instructions within the app.
The Tweak Enhance™ OTC app’s primary feature is
to customize the user’s preferred profile settings
that will provide a great fit and comfortable hearing
experience.
app may look and act differently from what is shown in
this manual. If so, follow the instructions within the app.
This page intentionally left blank.

APP GUIDE APP GUIDE
36 download the app 37
before you begin
download the app
Search for the Tweak Enhance OTC app on
Google Play or the App Store. Then, download the
app on your smartphone.
Tweak Enhance OTC
before you begin
Make sure…
– Bluetooth on your smartphone is turned on.
– Your hearing aid is fully charged.
– Your hearing aid is within 5 feet of your smartphone.
– You’re using iPhone 5 or above with iOS 9 or higher;
Android 6 or above.
Use with iPhone 5 or above with iOS 9 or higher;
Android 6 or above.
Tweak Enhance utilizes Bluetooth® Low Energy for
communication between the app and hearing aids.
It does not support streaming music or phone calls.
It does not support streaming music or phone calls.

APP GUIDE APP GUIDE
Follow prompts to
connect your devices.
Connect
Connect devices
one-by-one for
the appropriate
ears.
Devices are
labeled TE4
(xxxx) with (xxxx)
being an internal
identifier.
Open the app
38 before you begin 39
Tweak Enhance OTC