FCC ID: 2A4M4-QSC01 Quantum Shieldz Cipher

Before Use Names and Functions / Components Cipher's Dedicated Application Download and Install (for Android) Welcome users of Quantum Shieldz Cipher. This manual introduces how to use Quantum Shieldz Cipher

(hereinafter referred to as Cipher). As of now, Cipher app is compatible to Android OS version only. iOS version is planned to be released. Cipher is a device which pairs with a smartphone via bluetooth that may affect the audio quality of phone call depending on the users communication conditions. When the phone call voice quality deteriorates, reducing the distance between the device and smartphone(10-20 cm or less) or moving to a place with fewer bluetooth devices helps improve the voice quality of phone call. The capacity of the battery is 1000mAh and it lasts less than 8 hours in standby mode (5-6 hours on continuous phone call). While Cipher of the other party you are calling is turned off, it can still receive call requests or text messages and thus it is recommended to keep the device turned off when not in off, continuous use. Screen capture and recording voice function of the smartphone do not work during a phone call linked to the Quantum application. Recording voice function(or recording voice application) may operate but Cipher locks the microphone itself, the voice would not be recorded. When a regular phone call comes in from another party while on a secure call using Cipher, there will be automatic refusal to the call coming. After the secure call ends, you can check missed calls and respond. 2 3 4 Quantum Shieldz Cipher Device 9 Warranty Card 5 Speaker 1 6 7 8 10 Cipher exclusive earphone Microphone USB Type-C Port 11 USB Type-C Cable Press the button for a while(more than 3.5 seconds) to turn the power on/off. When a secure call comes in, press the button briefly and you can answer the call. Increases the volume during a call. (+) When you press the button briefly in standby mode, you can check the charge level of battery. Decreases the volume during a call. (-) When you press the button briefly in standby mode, you can check the charge level of battery. Turns the vibrate mode on/off when receiving a call. Application exclusively for Quantum Shieldz Cipher Power button Volume(+) button Volume(-) button Vibrate/silent mode button Q(Red LED) In standby mode, LED flickers. During a call, LED light is always on. Bluetooth status

(Blue LED) Displays the status of connection between smartphone and Cipher. LED flickers when disconnected, and LED keeps turned on when connected or in standy mode. Displays the level of battery charge and operation state.

- When connected to power, it lights up according to the battery charge level.

(From light off at 0%, the lights turns on sequentially per battery charge level, up to 100% full charge where the light turns off)

- When you click the volume button, it lights up for 3.5 seconds depending on the battery charge level and then turns off.

- While on a call, it flickers according to the battery charge level.

- Power On/Off blinks sequentially. When connected to USB Type-C port, it lights up. Register Cipher device with serial number and QRcode. Only the USB Type-C MONO earphones device can be used exclusively for Cipher. These earphones are used for analog type only, not DAC built-in earphones for general use. Bluetooth status

(Blue LED) Power status

(Red LED) Warranty card Earphone for Cipher USB Type-C cable The USB Type-C cable is for charging battery. During charging, the charging status and level of charge are displayed on LED of the device. Powered by EYL V1.2.2 Cipher Registration and Bluetooth Connection Functions of Each Menu of the Dedicated Application 1. User registration and bluetooth connection 1. Contact registration 2-1. Making a call When the person you are trying to reach is in available status(Cipher connected) 2-2. Making a call When the person you are trying to reach is in unavailable status(Cipher disconnected) 3. Receiving a call Open Cipher application and click buttons in order to activate camera: [setting user registration insert QR code]

You can add contact information at [Recents / Contacts / Keypad]

a tab at the bottom of the application. Scan QR code on the back of warranty card with camera and product information will be automatically entered. When you open the application, you can find [Recents / Contacts

/ Keypad] tab at the bottom and you can make a call using this tab. You can check whether the person you are calling is available or not. If he/she is not available, you can make a forced call or send a request message. When the person you are trying to call does not connect his/her smart phone to Cipher, you can send a message(push alarm) or make a forced call. Later when the person connects Cipher and turns up available, you can make a call. When there is an incoming call, the recipients smart phone(ring or vibrate) and Cipher device(vibrate or silent) will ring. You can answer the call by pressing the dedicated applications call button or Cipher devices power button. Select the device, register information and click register.

(Required to agree to terms and conditions when registering) Open the application and turn on the power of Cipher, they are automatically connected via bluetooth. You can add contact information by touching the buttons in order:

[Recents select the persons contact info add(+) button register contact]

Make a call by touching the buttons in order:

[Recents/ Contacts touch the person you are calling call]

Send Connection Message 2. Check bluetooth connection Check the application status bar Check with device

[Bluetooth disconnected] color gray You can add contact information by touching the buttons in order:

[Contacts add(+) button register contact]

[Bluetooth connected] color red

[Bluetooth disconnected] Blue LED flickers

[Bluetooth connected] Blue LED lights on You can add contact information by touching the buttons in order:

[Keypad enter contact information Add Contact(text)]

Make a call by touching the buttons in order:

[Keypad touch the person you are calling call]

Calling from [Quantum Kim]. Quantum Shieldz Cipher is required. CALL SEND CANCEL ACCEPT DECLINE

[Call request(caller)s screen]

[The other party(Recipient)s screen]

Send a request for a call by touching the buttons in order:

[Recents/ Contacts touch the contact info of the person you are trying to call send push alarm or call request]

On keypad screen, you can try to call regardless of the recipients connection status. When the recipient becomes available to receive the call, a note of incoming call is informed and the call will be on hold to be received. Answer the call Answer the call Cipher Device Dedicated Application 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. Any changes or modifications (including the antennas) to this device that are not expressly approved by the manufacturer may void the user's authority to operate the equipment. This equipment complies with FCC RF Radiation exposure limits set forth for an uncontrolled environment. This device and its antenna must not be co-located or operating in conjunction with any other antenna or transmitter. Download and install the application to use Cipher. You can download it from the Google Play Store on Android OS.

(Search terms: Quantum Shieldz, Quantum Shieldz Cipher, QSC, etc.) Required permissions during installation must be allowed for stable use.

(Allow access to bluetooth, location information, etc.) To use all the optimized functions of Cipher, keep the application updated to the latest version. It is recommended to use smartphone with OS installed higher than Android version 8.1.0 (Oreo) for the applications normal operation. For more information and inquiries Company(EYL) Website : www.eylpartners.com Brand(Quantum Shieldz) Website : www.quantumshieldz.com Product or business related inquiries quantum@eylpartners.com l TEL. (+82) 02-6993-7190

EYL Inc. Suite 401, 52, Singu-ro, Giheung-gu, Yongin-si, Gyeonggi-do, South Korea, 16971 June 21, 2022 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road, Columbia, MD 21046 To Whom It May Concern:

I, the undersigned, hereby authorize SGS Korea Co., Ltd. and hereafter referred to as SGS Korea, to act on our behalf in all manners relating to application for equipment authorization, including signing of all documents relating to these matters. Any and all acts carried out by of SGS Korea Co., Ltd. on our behalf shall have the same effect as acts of our own. I, the undersigned, hereby certify that we are not subject to a denial of federal benefits, that includes FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. 853(a). In authorizing SGS Korea as our agent, we still recognize that we are responsible to:

a) comply with the relevant provisions of the certification program;

b) make all necessary arrangements for the conduct of the evaluation, including provision for examining documentation and access to all areas, records (including internal audit reports) and personnel for the purposes of evaluation (e.g. testing, inspection, assessment, surveillance, reassessment) and resolution of complaints;

c) make claims regarding certification only in respect of the scope for which certification has been granted;

d) do not use our product certification in such a manner as to bring the Certification Division into disrepute and not make any statement regarding our product certification which the Certification Division may consider misleading or unauthorized;

e) upon suspension or cancellation of certification, discontinue use of all advertising matter that contains any reference thereto and return any certification documents as required by the Certification Division;

f) use certification only to indicate the products are certified as being in conformity with specified standards;

manner;

g) endeavor to ensure that no certificate or report nor any part thereof is used in a misleading h) ensure that any reference to our product certification in communication media such as documents, brochures or advertising, complies with the requirements of the Certification Division;

EYL Inc. Suite 401, 52, Singu-ro, Giheung-gu, Yongin-si, Gyeonggi-do, South Korea, 16971 i) keep a record of all complaints made known to the us relating to the products compliance with requirements of the relevant standard and to make these records available to the Certification Division when requested;

j) take appropriate action with respect to such complaints and any deficiencies found in products or services that affect compliance with the requirements for certification;

k) document the actions taken. This authorization is valid until further written notice from the applicant. Sincerely yours, Name / Title : Teakwoo Kim / Manager Company Name : EYL Inc.

SGS North America Inc. 620 Old Peachtree Road SUITE 100 Suwanee, Georgia 30024 United States Applicant Declaration Suite 401, 52, Singu-ro, Giheung-gu, Yongin-si, Gyeonggi-do, South Korea, 16971 Applicant Legal Business Name EYL Inc. Address Grantee Code FCC ID Contact Email Contact Phone Authorized Contact Name 2A4M4 2A4M4-QSC01 Teakwoo Kim twkim@eylpartners.com 82-10-9000-0373 a) b) c) d) e) I, the undersigned, certify that I am an authorized signatory for the Applicant and therefore declare;

in accordance with 47CFR2.911(d), all of the statements herein and the exhibits attached hereto are true and correct to the best of my knowledge and belief. in accepting a Grant of Equipment Authorization issued by a TCB, under the authority of the FCC, as a result of the representations made in this application, the Applicant is responsible for:

labeling the equipment with the exact FCC ID as specified in this application,

(1)

(2) compliance statement labeling pursuant to the applicable rules,

(3) compliance of the equipment with the applicable technical rules, if the Applicant is not the actual manufacturer of the equipment, appropriate arrangements have been made with the manufacturer to ensure that production units of this equipment will continue to comply with the FCCs technical requirements. in accordance with 47 CFR 2.909 and KDB394321, the Applicant has read, understood and agrees to accept that they are the responsible party and agree to abide by their responsibilities as specified under 47 CFR 2.909 and KDB394321. in accordance with ISO17065, FCC KDB641163, FCC KDB610077, KDB394321 and RSP-100, the Applicant has read, understood, accepts and agrees to abide by the post market surveillance requirements.

(1)

(2)

(3) the Applicant understands, accepts and agrees that a sample may be requested for surveillance testing. the Applicant shall make provisions to always have a production sample available upon request by SGS, FCC and/or ISED. the Applicant shall, upon request by SGS, at the Applicants expense, provide a production sample of the requested product to SGS, FCC and/or ISED as instructed. The sample shall include all support devices, cables, software, accessories or other hardware or software required for evaluation, review, certification and audit surveillance of products certified by SGS. f) neither the Applicant nor any party to the application is subject to a denial of Federal benefits, that includes FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. 862 because of a conviction for possession or distribution of a controlled substance. See 47CFR 1.2002(b) for the definition of a party for these purposes. g) the Applicant has read, understood, accepts and agrees to abide by the SGS North America, Inc.(TCB) terms and conditions. Link to CFRs: https://www.fcc.gov/wireless/bureau-divisions/technologies-systems-and-innovation-division/rules-regulations-title-47 Link to KDBs: https://apps.fcc.gov/oetcf/kdb/index.cfm Link to RSP-100: https://www.ic.gc.ca/eic/site/smt-gst.nsf/eng/sf01130.html Applicant Signature:

Date: June 3, 2022 Print Name:

Title:

*NOTE: This declaration cannot be signed by an Agent, it shall be signed by an authorized person listed in the FCC database Teakwoo Kim Manager Applicant Declaration Rev:0.0

EYL Inc. Suite 401, 52, Singu-ro, Giheung-gu, Yongin-si, Gyeonggi-do, South Korea, 16971 June 3, 2022 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road, Columbia, MD 21046 Request of Confidentiality for FCC ID : 2A4M4-QSC01 To Whom It May Concern:

Pursuant to Sections 0.457 and 0.459 of the Commissions Rules (CFR 47), and Section 552 (b) (4) of the Freedom of Information Act, EYL Inc. hereby requests confidentiality and treatment of certain information accompanying this application. The materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these matters might be harmful to the Applicant and provide unjustified benefits to its competitors. We are also hereby request Short-Term Confidentiality for 180 days after the grant as outlined in Public Notice DA 04-1705. This provision will give EYL Inc. temporary confidentiality of commercially sensitive information prior to product release. The requested Permanent and Temporary Confidential exhibits are listed as follows:

CONFIDENTIAL LIST Permanent Short-Term 1 2 3 4 5 6 7 8 Block Diagram Operational Descriptions Schematics Tune up External Photos Internal Photos Test-Setup Photos Users Manual The Applicant understands that pursuant to Rule 0.457, disclosure of this application and all accompanying documentations, where applicable, will not be made public before the date of the Grant for this application. Sincerely yours, Name / Title : Teakwoo Kim / Manager Company Name : EYL Inc.