New technology of sound processing and sound amplification that return joy of communication. You can hear even wishper.

1. THE TECHNOLOGY
AVAILABLE FOR EVERYONE
I am very hard of hearing. I have used and bought multiple hearing aid apps.
This is the first one that actually works…
(Heather M., Jul 2nd 2015)

2. THE GOAL - TO INCREASE THE AVAILABILITY OF QUALITY HEARING
AID WITH A UNIQUE KILLER FEATURES FOR SMARTPHONE USERS
IN-BUILT
HEARING TEST
AUTO TUNE
INTELLIGENT
PERSONAL
ASSISTANT
REMOTE
CONFIGURATION
ECOSYSTEM
COURSE OF
ADAPTATION
TO HEARING AID
VOICE-USER
INTERFACE
SPEECH TO
TEXT
RECOGNITION
NEW WAY OF SOUND
AMPLIFYING
Brilliant!
As a hearing aid user since 1981 I am pleased to recommend Petralex
Being able to create profiles is marvellous.
Background noise can be eliminated and the sensitivity is incredible.

3. ROAD MAP
TARGET
Implementing a intelligent personal assistant
Implementing a system for remote monitoring of hearing and application settings
Release of wired and wireless headset with acoustic
amplification, with binaural correction
Implementing a system for remote monitoring of hearing and application settings
Ecosystem. Audio / video player for known streaming services
The introduction of the visualizer / detector of
sound events
Q4 2018
- Q2 2019
DATE
Q4 2018
Q4 2018
Q1 2019
Q1-2 2019
Q2-3 2019
high
PRIORITY
high
high
mean
mean
high
mean
Built into app audio course of adaptation to Hearing aid Q3 2018 critical
TV viewing mode (software remote microphone ; capture audio from FM-radio (smartphone); audio streem from TV channels) Q1-2 2019
App for Apple Watch (ios) and Wear OS (Android) Q4 2018 high
IGood, Better, Best Surprising! For a free, non-IAP hearing app I'm really
impressed. I use this to watch TV when the audio volume must be low.
by C0mst0ck for v1.5.3 via App Store (US) • May 3, 2017
Implementing a voice-user interface
Q4 2018
- Q1 2019
mean
Release of wired and wireless headset with stereo microphones (for space orientation) Q2 2019 high
Implementation of the system for remote voice communications
Q2 2019 mean

4. Worldwide sales of hearing aids is only 11 mln. for $5.5 billion annually
while the market is constantly growing by 11%.
In the US, 48 million hearing-impaired people are in need of affordable equipment
and devices.
Auditory prosthesis for both ears in the US costs $4600*.
We offer to restore hearing for $99.
*An average price for a auditory prosthesis is $2300 ranging from $685-$2800 per auditory prosthesis
In China, 220 million people have hearing problems.
Auditory prosthesis in China costs 10 000 yuan*.
We offer to restore hearing for 599 yuan.
*One 6 channel hearing aid in China costs from 3000-7000 yuan
Best hearing aid app I know
Very user friendly and versatile, easy to adjust to your hearing loss.
Great complement for hearing aid!!!
by Fzeca for v1.6.0 via App Store (PT) • December 16, 2017
PROBLEM

5. TECHNOLOGICAL PACKAGE - APP IN A SET
WITH WIRELESS AND WIRED HEADSET
HEADSET WITH BUILT-IN STEREO MICROPHONES
FOR SPATIAL SOUND ORIENTATION
The technological package is not a auditory prosthesis, but it provides
a better result in comparison with medical devices.
Works like a charm! Please keep improving for better hearing. Kudos to th
by Gilang Ramadhan via Google Play (EN) • November 10, 2017
SOLUTION

6. PCT/RU2014/000297
“METHOD FOR COMPENSATING FOR HEARING LOSS IN A TELEPHONE SYSTEM
AND IN A MOBILE TELEPHONE APPARATUS”-
A METHOD WHICH COMBINES THE FUNCTION OF A CELLPHONE AND A HEARING DEVICE
THE RUSSIAN PATENT RU 2568281
APPLICATIONS FORMS ARE FILED IN THE US, CHINA, INDIA AND SOUTH KOREA
THE CORE OF AN AUDIO PROCESSING
IS A NONSPECIALIZED PLATFORM BASED
ON ANY PERSONAL COMMUNICATOR.
THE HEADSET IN THIS CASE IS AN AUXILIARY
ITEM FOR AMPLIFYING AND CAPTURING SOUND
SOLUTION

7. It's like a spy tool pretty cool taking the hearing test really gets your ears in tune.
I can definitely hear much more clearly; sounds I'm usually not aware of like...
by Esau DeMarco via Google Play (EN) • January 4
Nonspecialized platform based
on any personal communicator
Highly professional
R & D team
Patent
protected
Affordable price for both acquisition and
maintenance of the technological package
starting from $ 99 in the US and 599 yuan in China
Petralex hearin aid app - leader of the
segment in Appstore and Google Play
Widespread use -
of personal communicators
1 billion user market
WHY NOW

8. MARKET SIZE
For the first year we plan to sell in the US 1200 thousand licenses
(applications, technology packages)
This will cover 2,5% of those in need of hearing correction.
In the first year we are going to sell in China 3,5 million licenses.
We plan to provide 1,6% of those in need with our product.
0,5 million - lisence for smartphone (for elderly)
manufactures (2% of the mobile phone market for the
elderly* in China
*25 million items per year

9. 1 BLN100 MLN
360 MLN
220 MLN
48 MLN
250 MLN
80%
1 BILLION 100 MILLION OF YOUNG
PEOPLE (12-35 YEARS OLD) ARE
AT RISK OF HEARING LOSS
5.3% OF THE POPULATION ARE DISA-
BLED BY HEARING-360 MILLION
1/3 OF THE ELDERLY OVER 65 YEARS OLD
ARE HEARING-IMPAIRED
18% OF THE CHINA'S POPULATION
ARE HEARING-IMPAIRED
(80 MILLION DISABLED)
14, 8% OF THE US POPULATION SUFFERS
FROM PROGRESSIVE HEARING LOSS
THE GROWTH OF THE GERIATRIC
POPULATION IN THE US
AND CHINA INCREASES THE NEED
IN HEARING AIDS
80% OF HEARING AIDS OWNERS IN CHINA
DO NOT USE THEM FOR PSYCHOLOGICAL
REASONS AND DUE TO TECHNICAL
IMPERFECTIONS OF DEVICES*
ACCORDING TO WHO*
As good as my in-ear
Only used for one day, but so far, this far better than my expensive
in-ear--due mostly to the fidelity of the headphones. The profiles may c
by mighty_cricket for v1.5.3 via App Store (US) • June 17, 2017*THE REPORT BY VICE PRESIDENT OF THE CHINESE ASSOCIATION
OF AUXILIARY PRODUCTS (AAP) BIAN WEIGUO
*World Health Organisation
dev

10. MICROSOFT INSPIRE 2017
P2P CONTEST WINNER
PRODUCT
MORE THAN 1 000 000 DOWNLOADS
4,6
№1
4,0
PETRALEX USERS RATINGS
MORE THAN 1 000 000 DOWNLOADS
HEARING
AID APPLICATION
IN APPSTORE
AND GOOGLE MARKET
THE BEST LEARNING PROGRAM
– VIRTUAL LEARNING
FOR PEOPLE WITH HEARING IMPAIRS
Absolutely wonderful and outstanding app! It has more settings than any other app
I tried + hearing test + it has NO DELAY that other apps does. I finally can hear teacher in class,
I can study now and I couldn't be happier! I recommending to people who left a bed reviews,
to go and buy real hearing aid for hundreds of dollars, and try it. I have it and it much worse
than this app because doesn't have all that features as amplifing some particular frequencies.
This app is free, and I don't know how you dare to complain. Best wishes to creator!
I'm a software developer and I know what it's worth to create an app. They don't.
Thank you so much!
P.S.: for those who saying that they can't do nothing but hearing test -64
you just need to press on profile and it will begin to work. Jesus Christ, people!
by Let's Fix it! via Google Play (EN) • February 1
SILVER WINNER
IN THE 2018
GLOBAL P2P AWARDS
PROGRAM MICROSOFT – IAMCP 2018

11. *Very good*
This app works better than my Resound 6 hearing aids.
Sounds are clearer and I can hear in a crowded room.
kenlbear
Channels
Sample rate
Programmable hearing aid
In-built hearing test
Hearing test time
Remote configuration
Effects of anti stigmatization
Price range for correction of one ear
Price range for correction of both ears
Audio recorder + Speech recognition in text
Remote microphone option without additional devices
Volume balance reconstruction of the left / right ear
Gain formula, that takes into account the upper thresholds of perception
Adjustable noise suppression
Ecosystem of assistive applications
Suppressed acoustic coupling
Built into app course of adaptation to hearing aid
Online gain formula change
Online compression
Batteries
PETRALEX/ DECTONE
256
MAXIMUM 44 KHZ
YES (DONE BY THE USER )
YES
2 MIN (BY THE USER), 5 MIN (REMOTELY)
YES
YES
99$
99$
YES
YES
YES
YES
YES
YES
YES
YES
YES
BUILT IN, RECHARGEABLE
YES
TOP MODELS FROM 6 KEY*
PRODUCERS OF HEARING EQUIPMENT
15-111
MAXIMUM 14 KHZ
YES (DONE BY THE SPECIALIST)
NO
30MIN - 60MIN (SEVERAL TIMES)
YES (LIMITED)
NO, EXCEPT FOR INTRA CHANNELS (CIC)
600-2800$
1200 – 5600$
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
REMOVABLE, REQUIRE WEEKLY REPLACEMENT
*6 KEY PRODUCERS OF HEARING EQUIPMENT
COMPETITIVE ANALYSIS

12. e my life!
1*. SALE THROUGH TELEMEDICAL PLATFORMS AND APPLICATIONS FOR A REMOTE
HEARING TEST
DEVICES WILL BE SOLD TO CUSTOMERS LED TO AMAZON THROUGH OUR CHANNELS
WITH A ~7% COMMISSION.
TAOBAO (5% COMMISSION).
THIS CHANNEL IS CONSIDERED AS THE MAIN SALES CHANNEL FOR THE FIRST YEAR
WITH MORE THAN 65% SHARES OF THE TOTAL NUMBER OF SALES IN THE FIRST YEAR
AFTER THE LAUNCH.
OTHER CHANNELS SHOULD BE CONSIDERED NOT SOONER THAN 6 MONTHS AFTER
THE LAUNCH OF THE MARKETING CAMPAIGN.
2. SALES THROUGH TRADE CHAINS, MOBILEPHONE SHOPS, PHARMACIES, SPECIAL-
IZED HEARING SHOPS, WITH AN ESTIMATED COMMISSION OF ~ 70% FROM THE REC-
OMMENDED PRICE.
*TO MINIMIZE THE COSTS ON THE APPSTORE AND GOOGLE PLAY COMMISSIONS THE CODE FOR ANNUAL SUBSCRIPTION
ACTIVATION IS PROVIDED IN THE DELIVERY SET
BUSINESS MODEL
BASIC PRICES FOR CHINA AND THE USA (PETRALEX)
MONTHLY SUBSCRIPTION
ANNUAL SUBSCRIPTION
TECHNOLOGICAL PACKAGES PETRALEX
USA CHINA
$6.49 45 YUAN
$49.99 338 YUAN
$149 999 YUAN
1
2
3
Wonderful
Elderly family friend, now leaving with us can hear again. She is so elated every time we turn it on.
Static can be an irritant at times. Even so, we are very grateful to have found this app.
by Happy Friend of user for v1.4.5 via App Store (US) • June 30, 2016

13. REMOTE CONSULTANT IS READY TO HELP TO SET UP THE EQUIPMENT,
PROVIDE WITH THE NEEDED TIPS TO WORK WITH THE APPLICATION
Interaction with international and national telemedicine
platforms
The user can avoid visiting
the audiologist, significantly saving time and money
Life Saving App
Truth to be told this app saved my life. I have a moderate hearing loss
in my right ear and it happened suddenly year ago and I’m having
hard time to focus on human speeches and this helps me to listen.
Without this I would’ve been jobless! Thank you guys!
by TimeLord!!! for v1.6.0 via App Store (LK) • October 28, 2017
BUSINESS MODEL

14. 20%
17.2%
29.6%
17.2%
13.8%
0.6% 0.7%
Promotion
through own free apps
Exhibitions and conferences
Targeted advertising in social networks
(geo-targeting visitors to the ENT,
video game streamers, parents of video game players,
children of elderly parents)
Working with Key Opinion Leaders
Remote hearing test with the support
from telemedicine platforms and specialized
organizations (WHO, public and professional
associations, local health authorities)
SMM (e- media, bloggers)
Product ambassadors
12.5%
22.5%
34.5%
7.5%
12%
0.5%0.5%
US $10 MARKETING
COSTS FOR SALE OF
ONE PACKAGE
CHINA 38YUAN MARKETING
COSTS FOR SALE OF
ONE SET
MARKETING COSTS
FOR THE 1ST YEAR
IBest app in this category
it's a great app I think though needs some improvements. main problem that
I am facing is continuous echo from other side when receiving call during using the app.
hope it will be solved soon.
by Ahsan Habib via Google Play (EN) • December 27, 2016

15. DEVELOPMENT TEAM
Researcher
Project manager
Web server programmer
Tester
iOS & Android programmers, Senior level
Android programmer, mid level
System programmer, Senior Level
Electronics Engineer
2
1
2
2
3
1
1
3
KEY TEAM MEMBERS
ALEXANDER BREDIKHIN
ENG. IGOR PANSHIN
PHD. MAXIM VASHKEVICH
DR. DANIL DINTSIS
CEO & Founder, M.Sc., 10 years experi-
ence as innovation investor, patent
holder
M.Sc., Product manager
Microsoft AppCup winner In 2015
CTO
Associate professor
Business partner,
PgMP, PMP,
portfoliomanager
Successful partner manager

16. LET'S RESTORE THE ABILITY TO HEAR TOGETHER
ACCORDING TO CONSERVATIVE SALES GROWTH FORECAST
BY 20% IN THE SECOND AND 15% IN THE THIRD YEAR AND
RETAIN USERS (40%) NET PROFIT WILL BE MORE THAN $80 MLN
IN THE US MARKET FOR THREE INCOMPLETE YEARS
AFTER START OF SALES.
ACCORDING TO CONSERVATIVE SALES GROWTH FORECAST BY 20%
IN THE SECOND AND 15% IN THE THIRD YEAR AND RETAIN USERS (40%)
NET PROFIT WILL BE MORE THAN $390 MLN IN THE CHINA'S MARKET
FOR THREE INCOMPLETE YEARS AFTER THE START OF SALES.
FINANCE

17. Details about Dectone amplification rationales
Dectone is more complex approach to amplification. It is orient-
ed to correct recruitment based on above-threshold audiome-
try
The idea is to estimate the equal loudness curve for user hear-
ing in order to make correction of the recruitment more effec-
tively
This is done simultaneously for both ears in order to estimate
their relative sensitivity and provide balanced binaural correc-
tion
ANNEX 1

18. Potential for reducing Android processing-time delay
Android becomes a real-time operating system based on changes since the audio
part android 7 and 8, as well as the introduction of API AAudio
Google tightened requirements for manufacturers, regarding the audio part;
Was implemented API AAudio designed for high-performance audio applications
that require low latency (MUST have the continuous round-trip audio latency - 20
ms or less);
Announcement of work on the unification of the type-c connector, with the aim of
creating a new USB substandards for real-time use
ANNEX 2

19. The types of headsets that are in development
WIRED HEADSET
Features
3.5mm audio interface to phones
Microphone with anti-vibration design
30db amplifier for audio output.
Rechargeable battery for 8+ hours of usage
Specifications
1. Audio output: Maximum OSPL: 120db SPL
Frequency Response: 20~15KHz
2. Microphone: sensitivity: -56dB @1KHz
3. Amplifier: 30dB, Linear.
4. Power consumption and battery: 6ma/60mah
ANNEX 3
WIRELESS HEADSET
Features
2.4GHz ultra-low latency audio bi-directional transmission.
Microphone with anti-vibration design. 30db amplifier for audio output.
Rechargeable battery for 8+ hours of usage
Specification
1. Audio output:maximum OSPL: 120db SPL
Frequency Response: 100~8KHz, +-3dB
2. Microphone: sensitivity: -56dB @1KHz
3. Amplifier:30dB, Linear. 5 bands of EQ
4. RF: ISM 2.4GHz Spectrum, 16 preset channels
Signal/Noise: 80dB
Audio latency in one way: ~ 10ms
5 Power consumption and battery: 30ma (when active)/300mah Li-battery

20. ECOSYSTEM
We plan to provide software developers with SDK for
audio personalizing on the user's side. Our SDK essen-
tially important for video hosting, stream-music services
and video and voice messengers. A separate audio
plugin is provided for browsers. Integration of third-par-
ty applications into a single ecosystem occurs through
hearing testing in our services - Petralex, Dectone, Dec-
tone Hearing test. According to our estimation, the con-
version of users using the sound personalization func-
tionality to users of the paid application Dectone is 1%.
*DECTONE HEARING TEST - VISUALIZATION AND TEXT INTERPRETATION OF TEST RESULTS. COMPARI-
SON WITH AGE NORMS, COMPARISON WITH RETROSPECTIVE RESULTS OF TESTING, COMPARISON OF
THE RESULTS WITH ANOTHER PERSON
**LISTEN VIDEO* - APPLICATION SUPPORTING ASSISTIVE LISTENING DEVICE ˛ALD˙ MODE FOR VIEWING
STREAMING VIDEOS ENABLING TO LISTEN IN A NOISY ENVIRONMENT
***CITYDENOISER PLAYER* - APPLICATION SUPPORTING ASSISTIVE LISTENING DEVICE ˛ALD˙ MODE
FOR LISTENING TO STREAMING MUSIC.
*applications are under development
ANNEX 4
* **
***

21. Built into application course of adaptation to hearing aid
users of hearing aid headsets;
users of hearing aid application;
general lack of such courses in hearing aid producing companies
built into the application 4 week course of daily hearing exercises;
to form a user’s habit to hear environmental sounds, to the sound of his/her speech, to the
sounds of other’s people conversation by means of hearing aid;
control of the sequence of exercises being done; control of time needed for learning;
memos about daily exercises;
specially selected phrases and dialogues;
FOR:
WHO IS NOT SATISFIED
WITH THE CURRENT
ALTERNATIVES:
OUR PRODUCT:
WHICH ALLOWS:
KEY FUNCTIONS:
ANNEX 5

22. Built into the application adaptation course of exercises:
the sequence of exercises being done is in accordance with the training
schedule;
control of time needed for learning;
recording and playing the user’s voice by means of hearing aid in order
the user will be able to get used to his/her own speech
specially selected (by means of patented software) phonetically balanced
phrases, which contain the definite number of basic parts of speech (allo-
phones and phonemes) related to the frame of national oral and newspa-
per speech;
imitation of dialogues, in which the voiceover is made by male and female
narrators using different types of voices (high, middle and low pitched)
ANNEX 6

23. The results of the research of the PETRALEX application
for the hearing correction
THE RESULTS OF THE RESEARCH CONFIRMED THE POSITIVE
IMPACT OF TECHNOLOGY ON THE PERCEPTION
USERS OF HEARING AIDS HAVE CONFIRMED THE POSITIVE
IMPACT OF THE TECHNOLOGY OVER THE AUDITORY PROS-
THESIS WHILE HAVING A PRIVATE CONVERSATION IN A NOISY
ENVIRONMENT
991 RESPONDENTS
WHO HAD NOT PREVIOUSLY USED HEARING AIDS 720 RESPONDENTS WITH HEARING AIDS
6,78%
17,41%
39,47%
25,11%
11,23%
15,2%
31,70%
30,17%
15,22%
7,68%
4,44% 6,25% 8,06%
34,58%
33,75%
18,19%
5,42%
28,61%
39,86%
20,00%
5,28%
10,28%
32,64%
30,28%
22,36%
With Petralex Without Petralex Without a hearing aid/Petralex With a hearing aid With Petralex
Almost nothing
Something
Half
Much
Almost all
ANNEX 7