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.

ImportantSafetyInstruction
Setupthehearingamplifier
4. HowtoWearEarphone
Placethelogoverticallydownwards,plugtheearphoneintotheear
canal,andgentlyrotatetheheadsetbackuntilitcanbecompletely
placedinsidetheearandsnug.
Whentakingout,thefingersclamptheearphoneandrotateitforward.
5. Volumeadjustment:Rotatetheleftorrightknobforadjustingvolume.

ImportantSafetyInstruction
Setupthehearingamplifier
6. TrebleorBassadjustment:ShortpresspowerbuttontochooseTreble
orBass,thenshortpressLorR,foradding1leveloftreble,witheach
setting,theearphonewillhaveasoundofthecorrespondinglevel,and
youcanjudgewhetherthelevelisappropriateaccordingtothesound.
Theinitiallevelis4,highestlevelis8,afteryouaddedto8,itwill
returntolevel1.

ImportantSafetyInstruction
Setupthehearingamplifier
7. AfteryoufinishedSelf‐Tuningoneoftheearphone,andwanttoadjust
anotherone,pleaselongpressLforleftearphone(orRforright
earphone)todisconnectcurrentone,systemwillreturnbacktostep
2(selectearphone),thenyoucanselectandstartSelf‐Tuningfollowthe
abovesteps.
*Afteryoufinishedallearphones’Self‐Tuning,thesystemwillremenberthe
adjustment,noneedtore‐adjustthemwhenyourestart.
*Inordertoavoidhowling,beforeyouremovetheearphonefromtheear,
youneedtotouchthelogoontheearphonewithyourfinger,thenthe
soundwillautomaticallymutefor2seconds,thenremovetheheadphone.
*Thisproductincludes6pairsofdifferentsizesofeartips,accordingtothe
sizeoftheearholetochoosetheappropriateeartiptowear,inappropriate
eartipiseasilyhavehowling.

ImportantSafetyInstruction
Careandmaintenance
Storethehearingamplifier
Toprotectthehearingamplifier,storetheminthecasepartiallyopenwhen
you’renotusingthem.
Keepandstoredeviceandcomponentsoutofreachofchildren.Contains
smallpartswhichmaybeachokinghazard.
Maintainthehearingaids
Topreventdamageandpreservesoundquality,it’simportanttoregularly
maintainthehearingaidsandreplacecomponents
Moisture
Moisturecandamagethehearingaidsorcausethemtofail.
Keepthehearingaidsdry
•Neverwearthehearingaidsintheshower,bath,orpool.
•Protectthehearingaidsfromprolongedexposuretorain.
•Neverapplyhairspray,cologne,creams,orothercosmeticswhilewearing
thehearingaids.
Ifthehearingaidsbecomeexcessivelywet
•Openbothbatterydoors,removethebatteries,andleavethehearingaids
andbatteriesinthecaseovernightwiththelidopentodry.
•Tothoroughlydrythehearingaids,storetheminacontainerwith
desiccantsorinahearingaiddryingcase.
Thiscanhelpifyouliveinahumidclimateorsweatoften.

ImportantSafetyInstruction
TroubleShooting
Problems Solutions
Chargingcasedoesnot
poweron
openthechargingcasecover,ifthereisno
powershowsondisplay,youneedto
chargefirst,whenthepowerislessthan
20%,itneedtobechargedfirst.
Earphonecouldnotbe
turnedon
Pleaseensurethatthechargingcase
battery,andtheearphoneplugcharging
slow(thetopLEDlightdoesnotflash)
CannotenterSelf‐
Tuning
Ensurethatthechargingcasehaspower,
andthepowerismorethan50%,long
pressthepoweronfor3seconds.
Theearphonehas
beendisconnected
frequentlywhileself‐
tuning
Maybeyouareinastronginterference
space,pleasechooseasuitablelocation
andtryagain.
Theearphonecannot
charge
Pleasemakesuretheearphonesand
chargingbinofmetalcontactsiscleanand
notdamaged.
Thechargingcasecan
notcharge
Pleasecheckthechargingcableand
chargerisgoodwithoutdamaged.
Remark:Onceadditionalinformationneeded,pleasekindlycontact
[email protected],wewillsupportyouinshortesttime.

ImportantSafetyInstruction
FCCCompliance
NOTE:ThisequipmenthasbeentestedandfoundtocomplywiththelimitsforaClassB
digitaldevice,pursuanttopart15oftheFCCRules.Theselimitsaredesignedtoprovide
reasonableprotectionagainstharmfulinterferenceinaresidentialinstallation.This
equipmentgeneratesusesandcanradiateradiofrequencyenergyand,ifnotinstalledand
usedinaccordancewiththeinstructions,maycauseharmfulinterferencetoradio
communications.However,thereisnoguaranteethatinterferencewillnotoccurina
particularinstallation.Ifthisequipmentdoescauseharmfulinterferencetoradioor
televisionreception,whichcanbedeterminedbyturningtheequipmentoffandon,the
userisencouragedtotrytocorrecttheinterferencebyoneormoreofthefollowing
measures:
‐Reorientorrelocatethereceivingantenna.
‐Increasetheseparationbetweentheequipmentandreceiver.
‐Connecttheequipmentintoanoutletonacircuitdifferentfromthattowhichthereceiver
isconnected.
‐Consultthedealeroranexperiencedradio/TVtechnicianforhelp
Changesormodificationsnotexpresslyapprovedbythepartyresponsibleforcompliance
couldvoidtheuser'sauthoritytooperatetheequipment.
ThisdevicecomplieswithPart15oftheFCCRules.Operationissubjecttothefollowingtwo
conditions:
(1)thisdevicemaynotcauseharmfulinterference,and
(2)thisdevicemustacceptanyinterferencereceived,includinginterferencethat
maycauseundesiredoperation.
WEEECompliance
CorrectDisposalofThisProduct(WasteElectrical&ElectronicEquipment)
(Applicableincountrieswithseparatecollectionsystems)
Thismarkingontheproduct,accessoriesorliteratureindicatesthattheproductandits
electronicaccessoriesshouldnotbedisposedofwithotherhouseholdwasteattheendof
theirworkinglife.Topreventpossibleharmtotheenvironmentorhumanhealthfrom
uncontrolledwastedisposal,pleaseseparatetheseitemsfromothertypesofwasteand
recyclethemresponsiblytopromotethesustainablereuseofmaterialresources.Household
usersshouldcontacteithertheretailerwheretheypurchasedthisproduct,ortheirlocal
governmentoffice,fordetailsofwhereandhowtheycantaketheseitemsfor
environmentallysaferecycling.Businessusersshouldcontacttheirsupplierandcheckthe
termsandconditionsofthepurchasecontract.Thisproductanditselectronicaccessories
shouldnotbemixedwithothercommercialwastesfordisposal.