2BSZA-MOSS-ECHOMOSS ECHO

Applicant Declaration QSF27-14-04 Rev 1.4 April 25, 2025 Page 1 of 1 Original Issue: Jan. 4, 2021 SGS North America Inc. 620 Old Peachtree Road SUITE 100 Suwanee, Georgia 30024 United States Applicant Legal Business Name TAIGA GLOBAL Inc Address 20, Pangyo-ro, 289beon-gil, Bundang-gu, Seongnam-si, Gyeonggi-do, South Korea, 13497 FRN 0037634318 Grantee Code 2BSZA FCC ID: 2BSZA-MOSS-ECHO Authorized Contact Name Changhun, Jeong Contact Phone +82-70-8648-3851 Contact Email [email protected] I, the undersigned, certify that I am an authorized signatory for the Applicant and therefore declare; a) 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. b) 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: (1) labeling the equipment with the exact FCC ID as specified in this application, (2) compliance statement labeling pursuant to the applicable rules, (3) compliance of the equipment with the applicable technical rules, c) 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 FCC’s technical requirements. d) 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. e) in accordance with ISO 17065, 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) the Applicant understands, accepts and agrees that a sample may be requested for surveillance testing. (2) the Applicant shall make provisions to always have a production sample available upon request by SGS, FCC and/or ISED. (3) the Applicant shall, upon request by SGS, at the Applicant’s 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. terms and conditions as specified in the TCB Application Form 731 (QSF27-14-01). 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 Link to the Covered List: Covered List Applicant Signature: Date: January 7, 2026 Print Name: Changhun, Jeong Title: Director *NOTE: This declaration cannot be signed by an Agent, it shall be signed by an authorized person listed in the FCC database

FCC COVERED LIST DECLARATION LETTER Page 1 of 1 Revision 1.0 SGS North America Inc. 620 Old Peachtree Road SUITE 100 Suwanee, Georgia 30024 United States Applicant Legal Business Name TAIGA GLOBAL Inc Address 20, Pangyo-ro, 289beon-gil, Bundang-gu, Seongnam-si, Gyeonggi-do, South Korea, 13497 FRN 0037634318 Grantee Code 2BSZA FCC ID: 2BSZA-MOSS-ECHO Authorized Contact Name Changhun, Jeong Contact Phone +82-70-8648-3851 Contact Email [email protected] TAIGA GLOBAL Inc (“the applicant”) certifies: - the equipment for which authorization is sought is not “covered” equipment prohibited from receiving an equipment authorization pursuant to section 2.903 of the FCC rules. - as of the date of the filing of the application, the applicant is not identified on the Covered list, established pursuant to §1.50002, as an entity producing “covered” equipment. - the software to be loaded prior to marketing of the equipment identified above is not “covered” software manufactured by any entity including predecessors, successors, parents, subsidiaries, affiliates or any entity which has rebranded or relabeled the software produced by the entity(ies) identified on the “Covered List”. - the device is not capable of storing or running software listed on the covered list and therefore is not inherently compliant. NOTE: Justification/evidence explaining how compliance is met must accompany this letter Link to the Covered List: Covered List Applicant Signature: Date: January 7, 2026 Print Name: Changhun, Jeong Title: Director *NOTE: This declaration cannot be signed by an Agent, it shall be signed by an authorized person listed in the FCC database

UNITED STATES DESIGNATED AGENT LETTER Date: 07 Jan. 2026 TO: Federal Communication Commission Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MID 21046 Applicant U.S. designated agent Company Name: TAIGA GLOBAL Inc. Company Name: MOSSLAB INC FRN: 0037634318 FRN: - Grantee Code: 2BSZA Contact Name: Changhun, Jeong Contact Name WonSeok, Lee Address: 20, Pangyo-ro, 289beon-gil, Bundang-gu Address: 65 Challenger Road, Suite 250 City/Province/Zip: Seongnam-si, Gyeonggi-do, South Korea, 13497 City/Province/Zip: Ridgefield Park, New Jersey, 07660 Telephone: +82-70-8648-3851 Telephone: +1-302-601-4120 Fax: - Fax: - Email: [email protected] Email: [email protected] Applicable Equipment: Grantee code; 2BSZA ATTN: Director of Certification: We, < TAIGA GLOBAL Inc. > and < MOSSLAB INC > understand and acknowledge the applicants consent and the designated agent’s obligation to accept service of process in the United States for matters related to the applicable equipment, and at the physical U.S. address and e-mail of the designated agent listed above. We, < TAIGA GLOBAL Inc. > and < MOSSLAB INC > acknowledge the applicant’s acceptance of its obligation to maintain an agent for service of process in the United States for no less than one year after either the grantee has permanently terminated all marketing and importation of the applicable equipment within the U.S., or the conclusion of any Commission-related administrative or judicial proceeding involving the equipment, whichever is later. The company < MOSSLAB INC > in its capacity as the local representative for < TAIGA GLOBAL Inc. >, hereby declares that they do not have an FCC Registration Number of their own as they do not conduct any direct business with the FCC. Applicant U.S. designated agent Name (Printed): Changhun, Jeong Name (Printed): WonSeok, Lee Title: Director Title: company staff Signature: Signature:

UNITED STATES FCC AGENT LETTER Date: December 31, 2025 Subject: Statement of Local Agent’s Scope of Responsibility To: Federal Communications Commission Ref: Information regarding Local Agent for [TAIGA GLOBAL INC]] This letter is to formally confirm the role and responsibilities of [MOSSLAB INC], acting as the U.S. Local Agent for [TAIGA GLOBAL INC] (the "Applicant"), in accordance with FCC requirements. We, [MOSSLAB INC], hereby certify that our appointment as the U.S. Agent is strictly limited to the following duties as required by FCC regulations (e.g., 47 CFR § 2.911(d)(7)): Acting as the agent for service of process for the Applicant. Receiving and forwarding official correspondence and legal notices from the FCC to the Applicant. We further certify that: We do not engage in any other business activities, consulting, or commercial transactions with the Applicant outside of this designated agent role. There is no conflict of interest between our service as a Local Agent and any other business operations. We do not have any involvement in the design, manufacture, or marketing of the products subject to this authorization. This appointment will remain in effect until the Applicant’s obligations under the applicable FCC rules have expired. Sincerely, Signature : Name of Agent : Won Seok Lee Title : company staff Company Name of Agent : MOSSLAB INC U.S. Address : 65 CHALLENGER ROAD, SUITE 250, RIDGEFIELD PARK, NJ 07660 Email Address : [email protected]

TAIGA GLOBAL Inc 20, Pangyo-ro, 289beon-gil, Bundang-gu, Seongnam-si, Gyeonggi-do, South Korea, 13497 Date : January 7, 2026 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road, Columbia, MD 21046 LETTER FOR AUTHORIZATION FCC ID: 2BSZA-MOSS-ECHO 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 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; TAIGA GLOBAL Inc 20, Pangyo-ro, 289beon-gil, Bundang-gu, Seongnam-si, Gyeonggi-do, South Korea, 13497 f) use certification only to indicate the products are certified as being in conformity with specified standards; g) endeavor to ensure that no certificate or report nor any part thereof is used in a misleading manner; 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; i) keep a record of all complaints made known to the us relating to the product’s 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 : Changhun, Jeong Title : Director Company Name : TAIGA GLOBAL Inc

TAIGA GLOBAL Inc 20, Pangyo-ro, 289beon-gil, Bundang-gu, Seongnam-si, Gyeonggi-do, South Korea, 13497 Date : January 7, 2026 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road, Columbia, MD 21046 REQUEST FOR CONFIDENTIALITY FCC ID: 2BSZA-MOSS-ECHO Pursuant to Sections 0.457 and 0.459 of the Commission’s Rules (CFR 47), and Section 552 (b) (4) of the Freedom of Information Act, TAIGA GLOBAL 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 , TAIGA GLOBAL 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 1 Block Diagram 2 Operational Descriptions 3 Schematics 4 Tune up Procedure Short-Term 5 External Photos 6 Internal Photos 7 Test-Setup Photos 8 User 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 : Changhun, Jeong Title : Director Company Name : TAIGA GLOBAL Inc

LABEL information_ MECHO-A-WH Label will be placed on the product as below. Product : MOSS ECHO Model : MECHO-A-WH INPUT : DC 5V FCC ID : 2BSZA-MOSS-ECHO TAIGA Global Inc. Made in Korea 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

FCC ID: 2BSZA-MOSS-ECHO According to KDB 447498 D04 Interim General RF Exposure Guidance v01 1. MPE-Based Exemption An alternative to the SAR-based exemption is provided in § 1.1307(b)(3)(i)(C), for a much wider frequency range, from 300 ㎑ to 100 ㎓, applicable for separation distances greater or equal to λ/2π, where λ is the free-space operating wavelength in meters. The MPE-based test exemption condition is in terms of ERP, defined as the product of the maximum antenna gain and the delivered maximum time- averaged power. For this case, a RF source is an RF exempt device if its ERP (watts) is no more than a frequency-dependent value, as detailed tabular form in Appendix B. These limits have been derived based on the basic specifications on Maximum Permissible Exposure (MPE) considered for the FCC rules in § 1.1310(e)(1). Table 1 to 1.1307(b)(3)(i)(c) – Single RF Sources Subject to Routine Environmental Evaluation RF Source Frequency (㎒) Threshold ERP (watts) 0.3-1.34 1 920 R2 1.34-30 3 450 R 2 /f 2 30-300 3.83 R 2 300-1 500 0.012 8 R 2 f 1 500-100 000 19.2 R 2 2.1 RF Exposure Test Exemptions for Single Source Mode Frequency Range (㎒) Minimum Separation Distance (㎝) Maximum Average Target Power (㏈m) Maximum Tune up (㏈) Maximum Average Power (㏈m) Antenna Gain (㏈i) ERP Threshold ERP Ratio Result (㏈m) (㎽) (㎽) Bluetooth Low energy 2 402 ~ 2 480 20 2.5 2 4.5 -4.69 -2.34 0.58 768 0.000 8 Pass WLAN 2.4G 2 412 ~ 2 462 20 17 2 19 -10.83 6.02 4.00 768 0.005 2 Pass 2.2. RF Exposure Test Exemptions for Simultaneous Transmission Mode P i /P th Ratio Mode A P i /P th Ratio Mode B Σ P i /P th Ratio Mode A+B Result Bluetooth Low energy + WLAN 2.4G 0.000 8 0.005 2 0.006 Pass Note ; - Maximum average power = Maximum average target power (㏈m) + Maximum tune up (㏈). - ERP (㏈m) = Maximum average output power (㏈m) + Antenna gain (㏈i) - 2.15 (㏈). - Maximum average output power is the manufacturer’s declared rated power 3. Conclusion: No SAR is required.

SGS Korea Co., Ltd. 4, LS-ro 182beon-gil, Gunpo-si, Gyeonggi-do, Korea, 15807 Tel. +82 31 428 5700 / Fax. +82 31 427 2370 http://www.sgsgroup.kr Report Number: F690501-RF-RTL006535 Page: 2 of 74 RTT7081-02(2020.10.05)(0) A4(210 mm * 297 mm) INDEX Table of contents 1. General Information -------------------------------------------------------------------------------------- 3 2. Transmitter Radiated Spurious Emissions and Conducted Spurious Emissions ---------- 10 3. 6 ㏈ Bandwidth & 99 % Bandwidth -------------------------------------------------------------------- 46 4. Maximum Peak Conducted Output Power --------------------------------------------------------- 57 5. Power Spectral Density --------------------------------------------------------------------------------- 64 6. AC Power Line Conducted Emission ------------------------------------------------------------- 70 7. Antenna Requirement ----------------------------------------------------------------------------------- 74 SGS Korea Co., Ltd. 4, LS-ro 182beon-gil, Gunpo-si, Gyeonggi-do, Korea, 15807 Tel. +82 31 428 5700 / Fax. +82 31 427 2370 http://www.sgsgroup.kr Report Number: F690501-RF-RTL006535 Page: 3 of 74 RTT7081-02(2020.10.05)(0) A4(210 mm * 297 mm) 1. General Information 1.1. Testing Laboratory SGS Korea Co., Ltd. (Gunpo Laboratory) - 10-2, LS-ro 182beon-gil, Gunpo-si, Gyeonggi-do, Korea, 15807 - 4, LS-ro 182beon-gil, Gunpo-si, Gyeonggi-do, Korea, 15807 - Designation number: KR0150 All SGS services are rendered in accordance with the applicable SGS conditions of service available on request and accessible at http://www.sgs.com/en/Terms-and-Conditions.aspx. Phone No. : +82 31 688 0902 Fax No. : +82 31 688 0921 1.2. Details of Applicant Applicant : TAIGA GLOBAL Inc. Address : 20, Pangyo-ro, 289beon-gil, Bundang-gu, Seongnam-si, Gyeonggi-do, South Korea, 13497 Contact Person : Jeong, Chang-hun Phone No. : +82 70 8648 3851 1.3. Details of Manufacturer Company : Same as applicant Address : Same as applicant 1.4. Description of EUT Kind of Product MOSS ECHO Model Name MECHO-A-WH Serial Number Conducted: 001, Radiated: 003 Power Supply DC 5.0 V Frequency Range 2 412 ㎒ ~ 2 462 ㎒ (11b/11g/11n_HT20) 2 422 ㎒ ~ 2 452 ㎒ (11n_HT40) Modulation Technique DSSS, OFDM Number of Channels 11 channels (11b/11g/11n_HT20) 7 channels (11n_HT40) Antenna Type PCB Pattern Antenna Antenna Gain ※ -10.83 ㏈i H/W Version 1.2 S/W Version 1.0 SGS Korea Co., Ltd. 4, LS-ro 182beon-gil, Gunpo-si, Gyeonggi-do, Korea, 15807 Tel. +82 31 428 5700 / Fax. +82 31 427 2370 http://www.sgsgroup.kr Report Number: F690501-RF-RTL006535 Page: 4 of 74 RTT7081-02(2020.10.05)(0) A4(210 mm * 297 mm) 1.5. Test Equipment List Equipment Manufacturer Model S/N Cal. Due Cal. Interval Signal Generator R&S SMA100B 106887 10/20/2026 Annual Spectrum Analyzer R&S FSV30 103453 10/17/2026 Annual DC Power Supply R&S HMP2020 022802108 02/26/2026 Annual Attenuator AEROFLEX / INMET 40AH2W-6 2 05/23/2026 Annual Power Sensor R&S NRP-Z81 100748 06/16/2026 Annual Loop Antenna Schwarzbeck Mess-Elektronik FMZB 1519 1519-039 10/01/2027 Biennial Bilog Antenna Schwarzbeck Mess-Elektronik VULB 9163 01126 03/05/2027 Biennial Horn Antenna R&S HF906 100326 02/24/2026 Annual Horn Antenna Schwarzbeck Mess-Elektronik BBHA 9170 9170-540 12/11/2025 Annual Turn Table Innco systems GmbH DS 1200 S N/A N.C.R. N/A Controller Innco systems GmbH CONTROLLER CO3000-4P CO3000/963/383 30516/L N.C.R. N/A Antenna Mast Innco systems GmbH MA4640-XP-ET MA4640/536/383 30516/L N.C.R. N/A Anechoic Chamber SY Corporation L × W × H (9.6 m × 6.4 m × 6.6 m) N/A N.C.R. N/A Coaxial Cable SENSORVIEW NMST-13A26-NMST-5 m TPC2402190004 04/13/2026 Semi- Annual Coaxial Cable SENSORVIEW NMST-13A26-NMST-10 m TPC2402190001 04/13/2026 Semi- Annual Coaxial Cable RFONE PL360P-292M292M-1.5M-A 20200324002 04/10/2026 Semi- Annual EMI Test Receiver R&S ESU26 100109 01/13/2026 Annual Spectrum Analyzer Agilent N9020A MY53421758 09/10/2026 Annual Spectrum Analyzer Agilent N9030A US51350132 11/29/2025 Annual SIGNAL CONDITIONING UNIT R&S SCU18F 101058 02/27/2026 Annual Preamplifier H.P. 8447F 2944A03909 08/07/2026 Annual Preamplifier TESTEK TK-PA1840H 130016 03/13/2026 Annual High Pass Filter Wainwright Instrument GmbH WHK3.0/18G-6SS 4 06/09/2026 Annual High Pass Filter Wainwright Instrument GmbH WLKX10-6320-8000-26500- 40CC 6 10/22/2026 Annual EMI TEST RECEIVER R&S ESCI 7 100911 02/27/2026 Annual Two-Line V-Network R&S ENV216 100190 06/05/2026 Annual Shield Room SY Corporation L × W × H (6.5 m × 3.6 m × 3.6 m) N/A N.C.R. N/A SGS Korea Co., Ltd. 4, LS-ro 182beon-gil, Gunpo-si, Gyeonggi-do, Korea, 15807 Tel. +82 31 428 5700 / Fax. +82 31 427 2370 http://www.sgsgroup.kr Report Number: F690501-RF-RTL006535 Page: 5 of 74 RTT7081-02(2020.10.05)(0) A4(210 mm * 297 mm) 1.6. Summary of Test Results The EUT has been tested according to the following specifications: APPLIED STANDARD: FCC Part15 Subpart C Section Test Item(s) Result 15.205(a) 15.209 15.247(d) Transmitter Radiated Spurious Emissions and Conducted Spurious Emission Pass 15.247(a)(2) 6 ㏈ Bandwidth & 99 % Bandwidth Pass 15.247(b)(3) Maximum Peak Conducted Output Power Pass 15.247(e) Power Spectral Density Pass 15.207 AC Power Line Conducted Emission Pass 1.7. Test Procedure(s) The measurement procedures described in the American National Standard of Procedure for Compliance Testing of unlicensed Wireless Devices (ANSI C63.10-2020) and the guidance provided in KDB 558074 D01 15.247 Meas Guidance v05r02 were used in the measurement of the DUT. 1.8. Sample Calculation Where relevant, the following sample calculation is provided: 1.8.1. Conducted Test Offset value (㏈) = Attenuator (㏈) + Cable loss (㏈) 1.8.2. Radiation Test Field strength level (㏈㎶/m) = Measured level (㏈㎶) + Antenna factor (㏈/m) + Cable loss (㏈) - Amplifier gain (㏈) + Duty factor (㏈) SGS Korea Co., Ltd. 4, LS-ro 182beon-gil, Gunpo-si, Gyeonggi-do, Korea, 15807 Tel. +82 31 428 5700 / Fax. +82 31 427 2370 http://www.sgsgroup.kr Report Number…

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SGS Korea Co., Ltd. 4, LS-ro 182beon-gil, Gunpo-si, Gyeonggi-do, Korea, 15807 Tel. +82 31 428 5700 / Fax. +82 31 427 2370 http://www.sgsgroup.kr Report Number: F690501-RF-RTL006535 Page: 41 of 74 RTT7081-02(2020.10.05)(0) A4(210 mm * 297 mm) Middle Channel SGS Korea Co., Ltd. 4, LS-ro 182beon-gil, Gunpo-si, Gyeonggi-do, Korea, 15807 Tel. +82 31 428 5700 / Fax. +82 31 427 2370 http://www.sgsgroup.kr Report Number: F690501-RF-RTL006535 Page: 42 of 74 RTT7081-02(2020.10.05)(0) A4(210 mm * 297 mm) High Channel SGS Korea Co., Ltd. 4, LS-ro 182beon-gil, Gunpo-si, Gyeonggi-do, Korea, 15807 Tel. +82 31 428 5700 / Fax. +82 31 427 2370 http://www.sgsgroup.kr Report Number: F690501-RF-RTL006535 Page: 43 of 74 RTT7081-02(2020.10.05)(0) A4(210 mm * 297 mm) 11n_HT40 Low Channel SGS Korea Co., Ltd. 4, LS-ro 182beon-gil, Gunpo-si, Gyeonggi-do, Korea, 15807 Tel. +82 31 428 5700 / Fax. +82 31 427 2370 http://www.sgsgroup.kr Report Number: F690501-RF-RTL006535 Page: 44 of 74 RTT7081-02(2020.10.05)(0) A4(210 mm * 297 mm) Middle Channel SGS Korea Co., Ltd. 4, LS-ro 182beon-gil, Gunpo-si, Gyeonggi-do, Korea, 15807 Tel. +82 31 428 5700 / Fax. +82 31 427 2370 http://www.sgsgroup.kr Report Number: F690501-RF-RTL006535 Page: 45 of 74 RTT7081-02(2020.10.05)(0) A4(210 mm * 297 mm) High Channel SGS Korea Co., Ltd. 4, LS-ro 182beon-gil, Gunpo-si, Gyeonggi-do, Korea, 15807 Tel. +82 31 428 5700 / Fax. +82 31 427 2370 http://www.sgsgroup.kr Report Number: F690501-RF-RTL006535 Page: 46 of 74 RTT7081-02(2020.10.05)(0) A4(210 mm * 297 mm) 3. 6 ㏈ Bandwidth & 99 % Bandwidth 3.1. Test Setup EUT Attenuator Spectrum Analyzer 3.2. Limit According to §15.247(a)(2), systems using digital modulation techniques may operate in the 902-928 ㎒, 2 400-2 483.5 ㎒, and 5 725-5 850 ㎒ bands. The minimum 6 ㏈ bandwidth shall be at least 500 ㎑. 3.3. Test Procedure 3.3.1. 6 ㏈ Bandwidth The test follows section 11.8 DTS bandwidth of ANSI C63.10-2020. Tests performed using section 11.8.1 Option 1. - Option 1: 1. Set RBW to = shall be in the range of 1% to 5% of the OBW but not less than 100 ㎑. 2. Set the VBW ≥ [3 x RBW]. 3. Detector = peak. 4. Trace mode = max hold. 5. Sweep = No faster than coupled (auto) time. 6. Allow the trace to stabilize. 7. Measure the maximum width of the emission by placing two markers, one at the lowest frequency and the other at the highest frequency of the envelope of the spectral display, such that each marker is at or slightly below the "-6 ㏈ down amplitude”. If a marker is below this “-6 ㏈ down amplitude” value, then it shall be as close as possible to this value. SGS Korea Co., Ltd. 4, LS-ro 182beon-gil, Gunpo-si, Gyeonggi-do, Korea, 15807 Tel. +82 31 428 5700 / Fax. +82 31 427 2370 http://www.sgsgroup.kr Report Number: F690501-RF-RTL006535 Page: 47 of 74 RTT7081-02(2020.10.05)(0) A4(210 mm * 297 mm) 3.3.2. 99 % Bandwidth The test follows section 6.9.3 of ANSI C63.10-2020. The occupied bandwidth is the frequency bandwidth such that, below its lower and above its upper frequency limits, the mean powers are each equal to 0.5% of the total mean power of the given emission. The following procedure shall be used for measuring 99% power bandwidth: a) The instrument center frequency is set to the nominal EUT channel center frequency. The frequency span for the spectrum analyzer shall be between 1.5 times and 5.0 times the OBW. b) The nominal IF filter bandwidth (3 dB RBW) shall be in the range of 1% to 5% of the OBW, and VBW shall be at least three times the RBW, unless otherwise specified by the applicable requirement. c) Set the reference level of the instrument as required, keeping the signal from exceeding the maximum input mixer level for linear operation. In general, the peak of the spectral envelope shall be more than [10 log (OBW/RBW)] below the reference level. Specific guidance is given in 4.1.6.2. d) Step a) through step c) might require iteration to adjust within the specified range. e) Video averaging is not permitted. Where practical, a sample detection and single sweep mode shall be used. Otherwise, peak detection and max-hold mode (until the trace stabilizes) shall be used. f) Use the 99% power bandwidth function of the instrument (if available) and report the measured bandwidth. g) If the instrument does not have a 99% power bandwidth function, then the trace data points are recovered and directly summed in linear power terms. The recovered amplitude data points, beginning at the lowest frequency, are placed in a running sum until 0.5% of the total is reached; that frequency is recorded as the lower frequency. The process is repeated until 99.5% of the total is reached; that frequency is recorded as the upper frequency. The 99% power bandwidth is the difference between these two frequencies. h) The occupied bandwidth shall be reported by providing spectral plot(s) of the measuring instrument display; the plot axes and the scale units per division shall be clearly labeled. Tabular data may be reported in addition to the plot(s). SGS Korea Co., Ltd. 4, LS-ro 182beon-gil, Gunpo-si, Gyeonggi-do, Korea, 15807 Tel. +82 31 428 5700 / Fax. +82 31 427 2370 http://www.sgsgroup.kr Report Number: F690501-RF-RTL006535 Page: 48 of 74 RTT7081-02(2020.10.05)(0) A4(210 mm * 297 mm) 3.4. Test Results Ambient temperature : (23 ± 1) °C Relative humidity : 47 % Mode Channel Frequency (㎒) 6 ㏈ Bandwidth (㎒) 99 % Bandwidth (㎒) Minimum Bandwidth (㎑) 11b Low 2 412 10.246 13.546 500 Middle 2 437 10.246 13.546 High 2 462 10.246 13.546 11g Low 2 412 16.614 17.713 Middle 2 437 16.672 17.829 High 2 462 16.614 17.771 11n_HT20 Low 2 412 17.829 18.755 Middle 2 437 17.887 18.813 High 2 462 17.829 18.871 11n_HT40 Low 2 422 36.932 37.858 Middle 2 437 36.816 37.858 High 2 452 36.816 37.858 SGS Korea Co., Ltd. 4, LS-ro 182beon-gil, Gunpo-si, Gyeonggi-do, Korea, 15807 Tel. +82 31 428 5700 / Fax. +82 31 427 2370 http://www.sgsgroup.kr Report Number: F690501-RF-RTL006535 Page: 49 of 74 RTT7081-02(2020.10.05)(0) A4(210 mm * 297 mm) - Test plots - 6…

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SGS Korea Co., Ltd. 4, LS-ro 182beon-gil, Gunpo-si, Gyeonggi-do, Korea, 15807 Tel. +82 31 428 5700 / Fax. +82 31 427 2370 http://www.sgsgroup.kr Report Number: F690501-RF-RTL006664 Page: 2 of 39 RTT7081-02(2020.10.05)(0) A4(210 mm * 297 mm) INDEX Table of contents 1. General Information -------------------------------------------------------------------------------------- 3 2. Transmitter Radiated Spurious Emissions and Conducted Spurious Emissions --------- 8 3. 6 ㏈ Bandwidth & 99 % Bandwidth ------------------------------------------------------------------- 23 4. Maximum Peak Conducted Output Power --------------------------------------------------------- 28 5. Power Spectral Density --------------------------------------------------------------------------------- 32 6. AC Power Line Conducted Emission ------------------------------------------------------------- 35 7. Antenna Requirement ----------------------------------------------------------------------------------- 39 SGS Korea Co., Ltd. 4, LS-ro 182beon-gil, Gunpo-si, Gyeonggi-do, Korea, 15807 Tel. +82 31 428 5700 / Fax. +82 31 427 2370 http://www.sgsgroup.kr Report Number: F690501-RF-RTL006664 Page: 3 of 39 RTT7081-02(2020.10.05)(0) A4(210 mm * 297 mm) 1. General Information 1.1. Testing Laboratory SGS Korea Co., Ltd. (Gunpo Laboratory) - 10-2, LS-ro 182beon-gil, Gunpo-si, Gyeonggi-do, Korea, 15807 - 4, LS-ro 182beon-gil, Gunpo-si, Gyeonggi-do, Korea, 15807 - Designation number: KR0150 All SGS services are rendered in accordance with the applicable SGS conditions of service available on request and accessible at http://www.sgs.com/en/Terms-and-Conditions.aspx. Phone No. : +82 31 688 0901 Fax No. : +82 31 688 0921 1.2. Details of Applicant Applicant : TAIGA GLOBAL Inc. Address : 20, Pangyo-ro, 289beon-gil, Bundang-gu, Seongnam-si, Gyeonggi-do, South Korea, 13497 Contact Person : Jeong, Chang-hun Phone No. : +82 70 8648 3851 1.3. Details of Manufacturer Company : Same as applicant Address : Same as applicant 1.4. Description of EUT Kind of Product MOSS ECHO Model Name MECHO-A-WH Serial Number Conducted: 001, Radiated: 003 Power Supply DC 5.0 V Frequency Range 2 402 ㎒ ~ 2 480 ㎒ (Bluetooth Low Energy) Modulation Technique GFSK Number of Channels 40 channels (Bluetooth Low Energy) Antenna Type PCB Pattern Antenna Antenna Gain ※ -4.69 ㏈i H/W Version 1.2 S/W Version 1.0 SGS Korea Co., Ltd. 4, LS-ro 182beon-gil, Gunpo-si, Gy…

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