PO5C300RInstant Square Printer combo

Instant Square Printer combo This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. 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 correct the interference by one 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 which the receiver is connected. • Consult the dealer or an experienced radio/TV technician for help.

Prinics Co.Ltd 228-92, Saneop-ro 155beon-gil, Gwonseon-gu, Suwon-si, Gyeonggi-do, 16648, Korea Date: February 02, 2021 Federal Communications Commission Authorization and Evaluation Division Confidentiality Request regarding application for certification of FCC ID: PO5C300R Pursuant to Sections 0.457 and 0.459 of the Commission’s Rules, we hereby request confidential treatment of information accompanying this application as outlined below: PERMANENT Exhibit Type File Name Part List Part list_C300.pdf Schematics Schematics_C300.pdf Block diagram Block diagram_C300.pdf Operation description Operation description_C300.pdf And the above materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these materials may be harmful to the applicant and provide unjustified benefits to its competitors. The applicant understands that pursuant to Section 0.457 of the Rules, disclosure of this application and all accompanying documentation will not be made before the date of the Grant for this application. Sincerely, Jeong-Bok, Kim / Manager Prinics Co.Ltd

Prinics Co.Ltd 228-92, Saneop-ro 155beon-gil, Gwonseon-gu, Suwon-si, Gyeonggi-do, 16648, Korea Date: February 02, 2021 Federal Communications Commission 7435 Oakland Mills Road Columbia MD 21046 To whom it may concern: I, the undersigned, hereby authorize Young-Jin, Lee of KES Co., Ltd. and hereafter referred to as KES Co., Ltd., 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 Young-Jin, Lee of KES 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 KES Co., Ltd. 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; g) endeavor to ensure that no certificate or report nor any part thereof is used in a misleading manner; Prinics Co.Ltd 228-92, Saneop-ro 155beon-gil, Gwonseon-gu, Suwon-si, Gyeonggi-do, 16648, Korea 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, Jeong-Bok, Kim / Manager Prinics Co.Ltd REMARK: 1. This authorization letter will be sent along with your application when filing with the Certification Division. 2. Please follow the format and type it on company letterhead and send original to us. 3. Authorized signature must be in agreement with grantee code contact in FCC database.

United States Representative Letter of Attestation United States Representative Company Name : E&S International Enterprises, Inc. Contact Name : Rodney Rad Address : 7801 Hayvenhurst Avenue Van Nuys, California 91406 - USA Telephone Number : +1 818 702 2279 Fax Number : N/A E-mail : [email protected] This letter is to confirm that we have accepted the responsibility to act as United States Representative on behalf of Prinics Co., Ltd as noted below. Applicant Company Name : Prinics Co., Ltd Contact Name : JeongBok Kim Address : 228-92 155beon-gil Saneop-ro Suwon City Gyeonggi South Korea 16648 Telephone Number : +82 31 293 5990 Fax Number : +82 31 293 5994 E-mail : [email protected] Data of issuance : Feb, 02. 2021 Signature : Signed by (printed name): Managing Director / JungBok Kim

External photos / Basic FCC ID: PO5C300R Page 1 of 2 External photos / Basic BLANK BLANK BLANK BLANK FCC ID: PO5C300R Page 2 of 2

Label photo Instant Square Printer combo MODEL : C300 FCC ID : PO5C300R Power source : DC 7.4V -This device may not cause harmful interference. -T his device must accept any interference received, including interference that may cause undesired operation. Prinics Co.Ltd FCC ID: PO5C300R Page 1 of 1

Internal photos FCC ID: PO5C300R Page 1 of 1

RF exposure According to 447498 D01 General RF Exposure Guidance v06 The 1-g and 10-g SAR test exclusion thresholds for 100 ㎒ to 6 ㎓ at test separation distances ≤ 50 mm are determined by: [(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance, mm)] ·[√f(㎓)] ≤ 3.0 for 1-g SAR and ≤ 7.5 for 10-g extremity SAR, Where; f(㎓) is the RF channel transmit frequency in ㎓ Power and distance are rounded to the nearest ㎽ and mm before calculation The result is rounded to one decimal place for comparison Results – Bluetooth 3.0 - BDR (1Mbps) Frequency (㎓) Distance (mm) Max tune-up power (㏈m) Calculation value Exclusion Threshold (㏈m) (㎽) 2.402 5 -16.0 0.03 0.01 ≤3.0 2.442 5 -13.0 0.05 0.02 ≤3.0 2.480 5 -14.0 0.04 0.01 ≤3.0 - EDR (2Mbps) Frequency (㎓) Distance (mm) Max tune-up power (㏈m) Calculation value Exclusion Threshold (㏈m) (㎽) 2.402 5 -16.0 0.03 0.01 ≤3.0 2.442 5 -13.0 0.05 0.02 ≤3.0 2.480 5 -14.0 0.04 0.01 ≤3.0 - EDR (3Mbps) Frequency (㎓) Distance (mm) Max tune-up power (㏈m) Calculation value Exclusion Threshold (㏈m) (㎽) 2.402 5 -16.0 0.03 0.01 ≤3.0 2.442 5 -13.0 0.05 0.02 ≤3.0 2.480 5 -15.0 0.03 0.01 ≤3.0 FCC ID: PO5C300R Page 1 of 1

KES Co., Ltd. 3701, 40, Simin-daero 365beon-gil, Dongan-gu, Anyang-si, Gyeonggi-do, 14057, Korea Tel : + 8 2-31-425-6200 / Fax: +82-31 -424-0450 www.kes.co.kr Report No.: KES-RF1-21T0007 Page (2 ) of (50) Revision history Revision Date of issue Test report No. Description - 2021.02.02 KES-RF1-21T0007 Initial This report shall not be reproduced except in full, without the written approval of KES Co., Ltd. The results shown in this test report refer only to the sample(s) tested unless otherwise stated. The authenticity of the test report, contact [email protected] KES-QP-7081- 06 Rev. 7 KES A4 KES Co., Ltd. 3701, 40, Simin-daero 365beon-gil, Dongan-gu, Anyang-si, Gyeonggi-do, 14057, Korea Tel : + 8 2-31-425-6200 / Fax: +82-31 -424-0450 www.kes.co.kr Report No.: KES-RF1-21T0007 Page (3 ) of (50) TABLE OF CONTENTS 1. General information .................................................................................................................................................... 4 1.1. EUT description ........................................................................................................................................ 4 1.2. Test configuration ...................................................................................................................................... 5 1.3. Device modifications ................................................................................................................................. 5 1.4. Frequency/channel operations ................................................................................................................... 5 1.5. Accessory information............................................................................................................................... 5 1.6. Software and Firmware description ........................................................................................................... 5 1.7. Information about derivative model .......................................................................................................... 6 1.8. Measurement results explanation example ................................................................................................ 6 1.9. Measurement Uncertainty ......................................................................................................................... 6 2. Summary of tests ........................................................................................................................................................ 7 3. Test results .................................................................................................................................................................. 8 3.1. 20 ㏈ bandwidth ...................................................................................................................................... 8 3.2. Output power ........................................................................................................................................... 12 3.3. Carrier frequency separation ................................................................................................................... 16 3.4. Number of hopping frequency ................................................................................................................. 18 3. 5. Time of occupancy .................................................................................................................................. 20 3.6. Radiated restricted band and emissions ................................................................................................... 24 3.7. Conducted band edge and out of band emissions .................................................................................... 42 3.8. AC conducted emissions ......................................................................................................................... 47 Appendix A. Measurement equipment ......................................................................................................................... 49 Appendix B. T est setup photo ....................................................................................................................................... 50 This report shall not be reproduced except in full, without the written approval of KES Co., Ltd. The results shown in this test report refer only to the sample(s) tested unless otherwise stated. The authenticity of the test report, contact [email protected] KES-QP-7081- 06 Rev. 7 KES A4 KES Co., Ltd. 3701, 40, Simin-daero 365beon-gil, Dongan-gu, Anyang-si, Gyeonggi-do, 14057, Korea Tel : + 8 2-31-425-6200 / Fax: +82-31 -424-0450 www.kes.co.kr Report No.: KES-RF1-21T0007 Page (4 ) of (50) 1. General information Applicant: Prinics Co.Ltd Applicant address: 228-92, Saneop-ro 155beon-gil, Gwonseon-gu, Suwon-si, Gyeonggi-do, 16648, Korea Test site: KES Co., Ltd. Test site address: 3701, 40, Simin-daero 365beon-gil, Dongan-gu, Anyang-si, Gyeonggi-do, 14057, Korea 473-21, Gayeo-ro, Yeoju-si, Gyeonggi-do, Korea Test Facility FCC Accreditation Designation No.: KR0100, Registration No.: 444148 FCC rule part(s): 15.247 FCC ID: PO5C300R Test device serial No.: Production Pre-production Engineering 1.1. EUT description Equipment under test Instant Square Printer combo Frequency range 2 402 ㎒ ~ 2 480 ㎒ (BDR/EDR) Model C300 Derivative name C300R Modulation technique GFSK, π/4DQPSK, 8DPSK Number of channels 79 ch Antenna specification Antenna type : PCB antenna, Peak gain : -0.37 ㏈i Power source DC 7.4 V (Li-ion Battery) 15.247(a)(1) that the rx input bandwidths shift frequencies in synchronization with the transmitted signals. 15.247(g): In accordance with the Bluetooth Industry Standard, the system is designed to comply with all of the regulations in Section 15.247 when the transmitter is presented with a continuous data (or information) system. 15.247(h): In accordance with the Bluetooth Industry Standard…

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KES Co., Ltd. 3701, 40, Simin-daero 365beon-gil, Dongan-gu, Anyang-si, Gyeonggi-do, 14057, Korea Tel : + 8 2-31-425-6200 / Fax: +82-31 -424-0450 www.kes.co.kr Report No.: KES-RF1-21T0007 Page (50 ) of (50) Appendix B. Test setup photo Radiated AC conducted Blank The end of test report. This report shall not be reproduced except in full, without the written approval of KES Co., Ltd. The results shown in this test report refer only to the sample(s) tested unless otherwise stated. The authenticity of the test report, contact [email protected] KES-QP-7081-06 Rev. 7 KES A4