1. MarkeTrak VI: Hearing Aid Industry Market Tracking Survey 1984-2000 Sergei Kochkin, Ph.D. Knowles Electronics, Inc. February 27, 2002

2. Method National family opinion panel –80,000 households Balanced to key census variables –HIA survey in 1984 used NFO –All MarkeTrak surveys Screening Question – Phase I (November 2000) –Does anyone in your household have a hearing difficulty in one or both ears without the use of a hearing aid? –Physician screening for hearing loss during last physical within last six months. –Self, Spouse, Other, Child (Under age 18) –15,800 hearing-impaired individuals –72% response rate

3. Method Hearing Aid Owner Survey - Phase II –Detailed questionnaire 3,000 hearing aid owners based on Phase I response. –Response rate 87% Topics: –Customer satisfaction (more than 50 areas) –Hearing aid usage (e.g. hours worn) –Use of ALDs –First time user influences –Brand selection –Factors impacting choice of audiologist/dispenser –Suggestions for improving hearing aids –Perceived quality of life changes –Use of computers in hearing healthcare

4. Hearing Aid Market Penetration has Historically been low (1 in 5). Recent advances due to VA and Direct mail

5. Hearing-impaired User & Non-user Population

6. Hearing Loss Population by Age Group Owners versus Non-owners (2000)

7. Clinton Announcement Spurred Baby Boomer Potential Market Growth Clinton news release 10/97. M5 Survey taken 11/97. Age 45-54 hearing loss growth =23% $60k growth =35% Some college growth = 30% Growth continues. But penetration among Boomers unchanged. Huge Baby Boomer wave

8. Little Change in Market Penetration by Age Since 1989

9. Physician Screening for Hearing Loss During Physical Exam HIA Targeting with Physicians HIA Targeting ceases

10. Binaural Penetration Trend

11. Hearing Instrument Fittings by Perceived Profession

12. Hearing Instrument Fittings by Source of Distribution Mail Order has grown 91% since 1997; 124,000 hearing aid users. VA has grown 83% since 1997; 411,000 hearing aid users.

13. Current Hearing Aid Owners by Source of Distribution Total Users = 6.35 million

14. Factors Impacting Choice of Dispensing Practice (n=2,251) (Importance scores =4-5 on 5 point scale)

15. Third-party Payment Trend

16. Average Retail Price Paid by Consumer (includes free, direct mail hearing aids, & third-party discounts) +67%+61%+70%+53% Price increase % since 1994

17. Age of Hearing Instrument Mean age of instruments: 1991 = 3.1 yrs 1994 = 3.7 yrs 1997 = 3.8 yrs 2000 = 3.8 yrs

18. First Time User Rate FDA/FTC Issues Beltones Eddie Albert Ads

19. Factors Influencing New First Time Users to Purchase Factors less than 10% mentions: –Ad-magazine (3%) –HL Literature (2%) –Boss/co-worker (5%) –Newspaper (6%) –Direct mail (5%) –Ad - TV (2%) –Ad – radio (0%) –Telemarketing (0%)

20. Physician Recommendation Trends 1989 - HIA advertising to physician. Current initiatives: –AAA Best Practice –BHI Referral program Trends +, but not enough. Family doctor – single most important influencer of hearing aid purchase.

21. Factors Influencing New First Time Users to Purchase Notable changes since last MarkeTrak: –Audiologist influence increased to 40.5% - up from 26% in 1997. –ENT influence increased to 22.1% - up from 10.8% in 1997. –Free hearing aid influence nearly doubled.

22. Factors Considered Helpful or Reliable When Choosing Brand of Hearing Aid (n=2,273) (Helpfulness/reliability scores =4-5 on 5 point scale)

23. Average Age of New Users

24. New User Mean Household Income

25. U.S. Customer Satisfaction Trends No significant differences (H.A. <5 years.)

26. U.S. Customer Satisfaction Trends New Hearing Aids (< 1 year)

27. Hearing Aids In the Drawer

28. Hearing Aid Improvements Sought by Current Hearing Aid Owners (n=2,428) (Highly desirable scores =4-5 on 5 point scale)

29. Hearing Aid Improvements Sought by Current Hearing Aid Owners (n=2,428) (Desirable scores =4-5 on 5 point scale)

30. Non-owner Demography The Opportunity

31. The Non-Owner Opportunities Self-admitted Hearing Loss Gender (Millions)

32. The Non-Owner Opportunities by Age Classification

33. The Non-Owner Opportunities by Household Income

34. The Non-Owner Opportunities by Level of Education

35. The Non-Owner Opportunities by Employment Status

36. The Non-Owner Opportunities by Metro-size

37. The Hearing-Impaired Market by State: Self-admitted Hearing Loss Top 10 states –California –Texas –New York –Florida –Pennsylvania –Illinois –Ohio –Michigan –Georgia –North Carolina

38. Conclusions Hearing-impaired population > to 28.6 million. Major increases in Baby Boomer and 75+ age brackets. Penetration increased to 22.2%: –Free and direct mail impact Physician screenings declined to 14%. Overall customer satisfaction unchanged. –New hearing aid satisfaction on decline Hearing aids in the drawer improved to 11.7%. Audiologist influence in dispensing continues to grow.

39. Conclusions New user rate has dropped to 31.6%. –Average age increase to 69 –Household income increase to $46.3k Binaural rate is at an all time high of 84.5% for bilateral loss consumers. Third-party payments continue to increase. Out-of-pocket retail price to consumer increased 67% since 1994. Baby-boomer age wave continues to grow with no indication that industry has tapped this segment.

40. Conclusions The top hearing aid improvements sought by current hearing aid owners: –Hearing in noise –Better sound quality –Less whistling & feedback –Lower price –More soft sounds Least important improvements: –Leasing a hearing aid –Color of hearing aid –More fashionable hearing aids

41. Conclusions Top factors in choosing dispenser: –Professionalism –Convenient location –Convenient hours –Price Top factors considered to be helpful and reliable when choosing a hearing aid brand: –Medical doctor recommendation –AARP recommendation –Manufacturer website –Hearing instrument specialist recommendation

42. Key Findings from Knowles Market Development Studies

43. The Decision To Purchase a Hearing Aid is Very Complex and Little Understood

44. The Relationship Between Ad Expenditures & Hearing Aid Sales is Weak

45. The Issue of Price & Value

46. Customer Satisfaction with Value = Price/performance Hearing aids 1-5 years of age

47. Satisfaction Highly Related to How Much $$ the Consumer Pays to Solve Their Problem Note: Handicap reduction measured by APHAB

48. Hearing Aid Prices are Inelastic at Higher Prices & Highly Elastic at Low Prices Starter Hearing Aid Market

49. Stigma & Price Are Not the Only Barriers to Market Growth

50. The Issue of Stigma

51. Invisible Hearing Aids Have Greater Consumer Acceptance

54. Can Positive Role Models Help Consumers Overcome Stigma? Only Two examples I am aware of in our industry : –President Reagan – 1983 (associated with 20% growth) –Eddie Albert in Beltone commercials – 1989 Apparent Clinton effect in Fall of 1997 –Probable impact on admission of hearing loss by male baby-boomers –No impact on sales to date

55. What is The Viable Market for Hearing Aids?

56. Market Penetration is Highly Related to Recognition of Hearing Loss Handicap

57. Discriminant Function Probability of Non-owner Resembling Current HA Owner Based on Multiple Subjective Hearing Loss Measures. Probabilities 1-39% = 71% of non-owner market 14% of the owner market.

58. Four Methods of Measuring Viable US Hearing Aid Market Based totally on hearing loss measures the additional possible market growth is: Gallaudet Scores (est. dB Loss Better ear) = 125% Hearing Handicap Inventory (HHIE) = 154% APHAB = 127% Discriminant Function Modeling = 102% Clear that the current market could easily double based totally on hearing handicap. And, even more based on situational need.

59. Why Buy Hearing Aids?

60. Attitudes Per Se are Important, But Relationship to Hearing Aid Purchase Intent is Perhaps More Important Sample of 2,753 non-owners Measured their attitudes on 76 issues. Measured their hearing aid purchase intent in the next five years. Categorized them as a high or low purchase intenders. Took ratio of high/low purchase intenders for each attitude item. Ranked ratios First – present their attitudes in key categories. –On following charts – view red (negative) as barrier to growth.

61. Hearing-Impaired Non-owner Attitudes Towards Hearing Aids Factor = Distribution

62. Hearing-Impaired Non-owner Attitudes Towards Hearing Aids Factor = Hearing Health Professional Influence

63. Hearing-Impaired Non-owner Attitudes Towards Hearing Aids Factor =Hearing Loss

64. Hearing-Impaired Non-owner Attitudes Towards Hearing Aids Factor =Knowledge Level

65. Hearing-Impaired Non-owner Attitudes Towards Hearing Aids Factor =Lifestyle

66. Hearing-Impaired Non-owner Attitudes Towards Hearing Aids Factor =Hearing Aid Performance

67. Hearing-Impaired Non-owner Attitudes Towards Hearing Aids Factor =Hearing Aid Characteristics

68. Hearing-Impaired Non-owner Attitudes Towards Hearing Aids Factor =Social Influence

69. Hearing-Impaired Non-owner Attitudes Towards Hearing Aids Factor =Stigma & Cosmetics

70. Hearing-Impaired Non-owner Attitudes Towards Hearing Aids Factor =Value of Hearing Aids

71. Top 12 Correlates of Hearing Aid Purchase Intent

72. Lowest Correlates of Hearing Aid Purchase Intent Brand HA make only certain sounds louder Too expensive HA sellers take advantage of you Can afford hearing aids Need surgery Know where to go for hearing tests Know where to buy hearing aids Old image of hearing aids Use lower expense product Customer orientation of dispensers HA warranty Knowledge of hearing aids

73. Optimizing Quality of Life Benefits for the Consumer of Hearing Aids

74. Summary of Quality of Life Benefits Associated with Hearing Aids (NCOA Study – January 2000 Hearing Review) >Interpersonal relationships <Hearing loss compensation <Anger & frustration <Depression >Earning power >Emotional stability <Introversion >Control of life <Self-criticism <Paranoia >Overall health >Cognitive functioning <Discrimination <Anxiety <Social phobias >Social activity

75. Leveraging the Quality of Life Findings Best way to leverage is to assure that your clients have achieved significant benefit with their hearing aids. Post-fitting benefit measurement and customer opinion surveys critical. Minimize hearing aids in the drawer. Use technology and processes which enhance customer satisfaction.

76. 907,120 Customers do not Use Their Hearing Instruments (1997) 325,000 1-4 years

77. Impact of Dissatisfied Customers Deming proved that a dissatisfied customer tells 16 other people but a satisfied person only 8 others. Negative word-of- mouth has blocked close to 4 million from purchasing our product. Potential $19 billion loss to dispensers. Some key reasons why people do not buy HA

78. Customer Satisfaction Translates into Consumer Behavior

79. Reasons for Non-Use #1. Poor benefit (30%) - 268,507 When ______sold me the H.A., I was confident it would help me hear better. When I received it and wore it every day, it did not make my hearing any better. So, I dont wear the HA and feel like I wasted my money. I tried to return it and the person did not seem to want to help me. I am quite dissatisfied with the whole experience.

80. Reasons for Non-Use #2. Background noise (25%) - 229,383 I dont wear my H.A. because I need it at a dance, restaurants, and large groups. All the H.A. does is increase all sound including background sounds. No help.

81. Reasons for Non-Use #3. Fit & Comfort (19%) - 169,431 Its hard to keep it in my ear. I travel for business a lot and cant risk it falling out of my ear.

82. Reasons for Non-Use #4. Negative side effects (11%) - 99,048 Ears that hurt, too much pressure in the ears, blisters in ears, rashes in ears, itching ears, dizzy, nervous, ears that sweat, builds up wax in inner ear, headache, hair gets caught in hearing aid, infections in ear, problems chewing or swallowing, plugs up ears.

83. Reasons for Non-Use #5. Price & cost (10%) - 93,839 My H.A. was never dependable. Taking it in for an adjustment was only a headache as it never performed very long. Had to be looked at again. The last time I had trouble, the office wanted to send it to _____ at $200 & just to check it, plus another $200 to repair it.

84. We must minimize hearing aids in the drawer 907k inactive hearing aid owners Key reasons: –Poor benefit –Background noise –Fit and comfort –Negative side effects –Maintenance Cost/broken HA Impossible for consumer to experience QOL changes if their hearing aid is in drawer. Dispenser must find ways of optimizing the consumers experience

85. Dispenser does have control over hearing aids in the drawer # 1. Poor benefit: Use programmable technology (analog or DSP) Pre-post benefit measurement Real ear measurement 90 day post fitting customer satisfaction survey. 100% money back guarantee Aural rehabilitation Significant impact on hearing aid satisfaction. Return rates been shown to be cut in half.

86. Dispenser does have control over hearing aids in the drawer # 2. Hearing in noise 100% use of dual microphones – not just in high-end product DSP for comfort in noise Volume control necessary for some segments Manual omni/directional switch necessary for some consumers Binaural fitting for bilateral loss customers (85% rate in US- much lower in Europe) Deep-fitting CICs give some benefit. Aural rehabilitation

87. Dispenser does have control over hearing aids in the drawer #3. Fit and Comfort Extreme vigilance during impression taking. Multiple shell impressions if necessary with best going to the manufacturer. Silicon material considered superior. Explore emerging soft shell technology for difficult cases. Rework within office. Assess manual dexterity and visual acuity considerations relative to hearing aid style. 14 or 30 day trial post-fitting subjective measure of fit and comfort.

88. Improving Customer Satisfaction with Hearing Aids Recent Research

89. Strategic Objective of Knowles Participate with the industry in a continued dialogue on factors impacting customer satisfaction. Customer satisfaction improvement –critical to growth of the market –the only way to properly leverage QOL findings. Knowles conducted research on 25,000+ consumers. –Customer satisfaction –Subjective benefit Publication of journal dedicated to customer satisfaction: High Performance Hearing Solutions.

90. Previous MarkeTrak Customer Satisfaction Research Advanced technology enhances customer satisfaction: –Programmable (digital or manual) –Multiple memories –Multiple channels –Multiple microphones – directional hearing instruments (strongest factor) –Non-linear signal processing (e.g. WDRC)

91. Previous MarkeTrak Customer Satisfaction Research Other important factors –Volume control (some segments) –Telecoils –Completely in the canal instruments (CIC) –Binaural hearing aids More recent research –Cerumen management systems (Sep. 2001 HR; Apr. 2002 HR) –Digital Hearing Aids (Nov. 2000 HR) Now 40% of the market Smaller clinical studies generally positive

92. Recent Research with MicroWaxbuster Demonstrates it Will Dramatically Reduce Hearing Aid Service Rates MicroWaxbuster Cutaway CIC with MicroWaxbuster installed

93. In analyzing 7,000,000 small receivers Knowles has discovered that receiver replacements are 8 times less likely if the manufacturer was a heavy user of the Waxbuster or MicroWaxbuster than if they used none.

94. Study # 2 – 90,000+ Consumers Database query of one US manufacturer. 24 month study across three styles of hearing instruments: CIC, ITC, ITE. Consumers segmented: –Age of instrument – 1-24 months –MicroWaxbuster usage or None. Tracked receiver replacements in corporate service files.

95. Receiver replacement rates per 100 CIC hearing aids (n=21,345)

96. Receiver replacement rates per 100 ITC hearing aids (n=47,316)

97. Receiver replacement rates per 100 ITE hearing aids (n=21,647)

98. Percent reductions in receiver replacements by style of hearing aid due to the MicroWaxbuster across all months and over two years (n=90,308).

99. Conclusions Increased penetration of ITE, ITC, and CIC hearing instruments with the MicroWaxbuster ® product will have a positive impact on the market place. Offer this as a strongly recommended option to your patients/customers. Both manufacturers and dispensers should recognize increased profits by selling this optional component while reducing within-warranty repairs. Consumers for a small additional fee, will experience: –Greater reliability in their product, –Resulting in fewer hearing instrument repairs, –Reduced frustration and therefore, –Increased consumer satisfaction.

100. Digital Study November 2000 Hearing Review Multiple manufacturer products were studied. Results of first large-scale study on satisfaction with DSP hearing aids: –Single European based manufacturer –200 single mic (44% ITE / 56% ITC) –296 multiple mic (69% BTE / 31% ITE) –Compared to 418 MarkeTrak (analog) norms –Average age of instruments 7-8 months Consumer completed Knowles MarkeTrak survey –45 ratings of hearing aid and dispenser

101. Top ten correlates of overall satisfaction (in rank order) 1.Perceived benefit 2.Sound clarity 3.Value (price/performance) 4.Reliability 5.Use in leisure activities 6.Natural sounding 7.Use in noisy situations 8.Use in large groups 9.Use in restaurants 10.Use outdoors

102. Factors showing at least 10% improvement in customer satisfaction Dual= 14 Omni=4

103. Significant Differences Overall, Consumer Behavior & Dispenser Factor Single Mic & MarkeTrak Multiple Mic & MarkeTrak Multiple mic & Single Mic Overall satisfaction Quality of life Recommend HA Recommend HHP Repurchase HA Wear hearing aid Dispenser service

104. Significant Differences Product Features Factor Single Mic & MarkeTrak Multiple Mic & MarkeTrak Multiple mic & Single Mic Fit/comfort Ease VC adjust. Visibility Packaging Freq. Cleaning Warranty Ease Battery Chg. On-going expense Factor in yellow denotes top ten correlate of overall satisfaction.

105. Consumer Need for a Volume Control

106. Customer Satisfaction is Related to Need for a VC

107. Significant Differences Performance Factors Factor Single Mic & MarkeTrak Multiple Mic & MarkeTrak Multiple mic & Single Mic Benefit Reliability Sound clarity Natural sounding Sound of voice Soft sounds Loud sounds Whistling/feedback Factor in yellow denotes top ten correlate of overall satisfaction.

108. Significant Differences Performance Factors (Cont.) Factor Single Mic & MarkeTrak Multiple Mic & MarkeTrak Multiple mic & Single Mic Value (price/perf.) Directionality Use in Noisy Sit. Battery Life Factor in yellow denotes top ten correlate of overall satisfaction.

109. Significant Differences Listening Situations Factor Single Mic & MarkeTrak Multiple Mic & MarkeTrak Multiple mic & Single Mic One-on-one T.V. Small Groups Listening to music Place of worship Outdoors Leisure activities Factor in yellow denotes top ten correlate of overall satisfaction.

110. Significant Differences Listening Situations (Cont.) Factor Single Mic & MarkeTrak Multiple Mic & MarkeTrak Multiple mic & Single Mic Car Restaurant Concert/movie Workplace Telephone Large group Factor in yellow denotes top ten correlate of overall satisfaction.

111. Summary of Key Findings Single Mic DSP Multiple Mic DSP Overall customer satisfaction improvement (vs. MarkeTrak) +3%+17% Factors with 10%+ improvement (vs. MarkeTrak) 414 Top ten consumer factors improved (vs. MarkeTrak) 06 Net listening situations improved (vs. MarkeTrak) 4 Net performance/value factors improved (vs. MarkeTrak) -26 Significant differences (single vs. multiple microphone DSP) 114

112. Conclusions Performance in noise: –Key reason why hearing-impaired do not buy hearing aids (MarkeTrak). –#1 hearing aid improvement sought by hearing aid users (United States MarkeTrak study - 2001). –#1 hearing aid improvement sought by hearing aid users (German study - 1995). –#2 reason why 907,000 of our customers place their hearing aids in the drawer (MarkeTrak).

113. Conclusions Consumer studies now demonstrate the superiority of multiple microphone hearing aids over omni- directional only aids: –Kuk (Hearing Instruments, 1996) - analog –Kochkin (Hearing Review, 1996) - analog –Schuchman, Valente, Beck, Potts (HR, 1999) – analog (double blinded study) –Kochkin (Hearing Review, 2000)- digital Consumer research supportive of dozens of small clinic/lab studies or theoretical papers.

114. Recommendations Fit all qualified candidates with directional hearing aids (BTE, Full concha, half shell). Ask manufacturers to extend directional feature to lower priced product (not just high end programmable.) Completely automatic aids are tremendous feature for some, but not all, consumers: –Make sure your patient can live without VC or directional/omni-directional switch. –Lack of control could dramatically impact satisfaction. Consider active wax protection system as standard feature on all In-the-ear instruments.