Larksound ZT2111 User manual

ZT2111
HEARINGAMPLIFIER
USERMANUAL

ImportantSafetyInstruction
Safetyandhealthinformation
Intendeduse
TheLarkSoundhearingamplifierareapairofuser‐fitted
wirelessairconductionhearingamplifierintendedforuseby
individuals18yearsandolderwithperceivedmildto
moderatehearingimpairment.
Indicationsforuse
TheLarkSoundhearingamplifierareintendedtoamplify
soundforindividuals18yearsofageorolderwithperceived
mildtomoderatehearingimpairment.Theyareadjustedby
theusertomeettheuser’shearingneeds.Nopre‐
programmingorhearingtestisnecessary.Thedeviceis
intendedfordirect‐to‐consumersaleandusewithoutthe
assistanceofahearingcareprofessional.
Clinicaldata
Inaclinicalstudy,peoplewithmildtomoderatehearing
impairmentgenerallyexperiencedsimilarhearingbenefit,
andweremoresatisfied,whenusingtheLarkSoundself‐
fittingtechnologycomparedwithprofessionalfittingofthe
samedevice.Therewerenoadverseeventsencountered
duringthisstudy.

ImportantSafetyInstruction
Hearinghealthcareinformation
Thisproductmayhelpyouhearbetterifyou:
•Straintofollowconversationswhenothersdon’t,
especiallyinnoisyplaces.
•HavetroubleunderstandingtheTV.
Thisproductmaynotberightforyouifyou:
•Consistentlyexperiencefeedback(whistling)ofthe
hearingaidwhenyouturnupWorldVolumetoalevelthat
iscomfortableforyou,evenafteryouhavefollowedthe
suggestionsintheseInstructionsforUsetomakesureyour
hearingaidfitsproperly.
•Feelthehearingaidisnotprovidingenoughamplification
evenatthehighestWorldVolumesetting.
Ahearinghealthcareprofessionalmaybeabletohelpyou
selectadifferenthearingaidsolutiontomeetyourneeds.
Safetyandhealthinformation

ImportantSafetyInstruction
Youshouldseeahearinghealthcare
professionalifyou:
•Haveavisibledeformityoftheear.
•Haveacurrentearinfectionorahistoryofactivedischarge
fromoneorbothearswithinthepast90days.
•Havesuddenorrapidprogressionofhearinglosswithin
thepast90daysinoneorbothears.
•Haveacuteorchronicdizziness,poordexterity,poorvision,
orsignificantdementia.
•Suspectthatyouhavesignificantearwaxaccumulationor
aforeignobjectintheearcanal.Symptomsofsignificantear
waxaccumulationcanincludeitchinginyourear,afeelingof
fullnessinyourear,and/orreducedhearing.
•Experiencepainordiscomfortintheear.
•Haveanoticeabledifferenceinhearingbetweenears.
•Havesuddenonsetorrapidworseningoftinnitus(ringing
intheear)inoneorbothearswithinthepast90days.
Safetyandhealthinformation

ImportantSafetyInstruction
Thisproductwillnotrestorenormalhearingandwillnot
preventorimproveahearingimpairmentresultingfrom
organicconditions.Thisproductisdesignedtohelpyou
makegreateruseofyourremaininghearingability.You
shouldkeepinmindthatitcantaketimetobecome
accustomedtohearingnewsounds.
Forbestresults,practiceusingthehearingamplifierasmuch
aspossible.Inmostcases,infrequentuseofthehearing
amplifierdoesn’tpermityoutoattainfullbenefitfromthem.
Theuseofahearingaidisonlypartofhearinghabilitation
andmayneedtobesupplementedbyauditorytrainingand
instructioninlipreading.
Itisgoodhealthpracticeforapersonwithahearinglossto
haveamedicalevaluationbyalicensedphysician(preferably
aphysicianwhospecializesindiseasesoftheear).Licensed
physicianswhospecializeindiseasesoftheearareoften
referredtoasotolaryngologists,otologists,or
torhinolaryngologists.Thepurposeofamedicalevaluationis
toassurethatallmedicallytreatableconditionsthatmay
affecthearingareidentifiedandtreated.
Safetyandhealthinformation

ImportantSafetyInstruction
Keepandstoredeviceandcomponentsoutofreachof
children.Containssmallpartswhichmaybeachoking
hazard.
•Topreventhearingdamage:
–Useappropriatehearingprotectioninloudenvironments.
ThehearingamplifierareNOThearingprotectiondevices.
– Removethehearingamplifierifyouencounteranyoverly
loudsounds.
•DoNOTusethehearingamplifierinexplosiveor
oxygen‐enrichedatmospheres.Otherwise,afireor
explosioncouldoccur.
•Checkbeforeusingthehearingamplifierinareaswhere
electronicsorwirelessdevicesarerestricted.Thismay
causeinterference.
•DoNOTresellthehearingamplifierorsharethemwith
others.Theyareintendedforusebyasingleuser.Using
resoldorsharedhearingamplifiermayleadtoinfection.
•Keeptheproductawayfromfireandexcessiveheat
(e.g.,fromstorageindirectsunlight,nearcandles,orina
hotcar)toavoidburnsordamagetoproduct.
•DoNOTsubmergeinwater,wearintheshower,orwear
whileparticipatinginwatersports,e.g.,swimming,
waterskiing,surfing,etc.Prolongedexposuretowatermay
damagethehearingamplifier.
Safetyandhealthinformation

ImportantSafetyInstruction
•Beawarethatsomesoundsmaysounddifferentwhen
you’reusingthehearingamplifier.Keepthisinmindwhen
youneedtobeawareofyoursurroundings.Youshould
adjusttothisovertime.
•Consultahearingcareprofessionalifyouexperience
anyunusualsideeffectslikeskinirritation,excessive
accumulationofearwax,dizziness,changeinyourhearing,
orifyouthinktheremaybeaforeignobjectin
yourearcanal.
•Whenadjustingthevolume/bass/treble,turnup
graduallyuntilyoureachacomfortablelisteninglevel.
•DoNOTusethehearingamplifierortheircomponentsif
anypartofthemisdamaged,iftheyemitanyloud
unusualnoise,ifyouexperienceawarmingsensation,
orifyouexperiencelossofaudio.Ifthishappens,
removeandpoweroffthehearingamplifierimmediately,
thencontactoursupportteamviaemail
[email protected]om.
•DoNOTmakeunauthorizedalterationstothisproduct.
Safetyandhealthinformation

ImportantSafetyInstruction
What’sinthebox
Chargingcase(1)Hearingamplifier(1pair) Eartips(6pairs)
Hearingaidbrush(1) Type‐Cchargingcable(1) UserManual(1)
•InputVoltage:5V1A
•Batterylife:6hoursforsinglecharge
•Chargingcasecapacity:total30hrusagewithcase
•HearingAidAmplificationGain:>50dB
•Volume amplify:19levels
•Highfrequency(Treble)compensation8levels,Lowfrequency(Bass)
compensation8levels
•Waterresistant:resistanttowaterandabletosurvivelightexposureto
rainorwater.
Specification

ImportantSafetyInstruction
Setupthehearingamplifier
Charging
•Whileyouchargingthecase,displayshowing"Charging",afteritfully
charged,showing"100%".
•Earphoneswillbeautomaticallychargingafteryouputtheminthecase,
earphonelightstopflashingafterfullycharged.
HowtoSelf‐TuningthisHearingAmplifier
1. Openthecoverofchargingcase,thescreenshowstheremaining
chargeofthebattery,pressandholdthepoweronfor3secondsuntil
the"LARKSOUND"logoisreleased.Ifthereisnoactionformorethan
30seconds,thescreenwillautomaticallyturnoff.Atthistime,you
needtoclickthepoweron,andthenlongpressthepowerkeytoenter
theSelf‐Tuning.

ImportantSafetyInstruction
Setupthehearingamplifier
2. Afterthelogo,thescreenshows"Pleaseselect".KEEPTHEEARPHONE
INTHECHARGINGCASE.Choosetoadjusttheneededearphone,
pleasepressLforleftearphone,pressRforrightearphone;
3. Afterselectedearphone,thechargingcasewillconnectearphone
automatically,KEEPTHEEARPHONEINTHECHARGINGCASEbefore
displayshows”Connected”,thenyoucanweartheearphoneforSelf‐
Tuning.