2ASP2KBD-002Bdot

1 User's Guide 2 CONTENTS BDOT Introduction ..................................................................................................................................................... 4 product composition ................................................................................................................................................. 4 Specification ............................................................................................................................................................ 4 product Specification ................................................................................................................................................. 5 CerTIFICATION ........................................................................................................................................................... 5 Basic function ................................................................................................................................................................ 5 Product connection (Bluetooth connection) ............................................................................................................. 5 At first connection ................................................................................................................................................. 5 When reconnecting to an existing device .............................................................................................................. 5 When connecting to a new device ........................................................................................................................ 5 Basic usage ................................................................................................................................................................ 6 Hotkey mode switching ......................................................................................................................................... 6 Change your language ........................................................................................................................................... 6 Check the battery level .......................................................................................................................................... 6 Battery level warning ............................................................................................................................................. 6 Buzzer .................................................................................................................................................................... 7 Add‐ons ...................................................................................................................................................................... 7 Phone mode key arrangement .............................................................................................................................. 7 Braille Practice ....................................................................................................................................................... 7 Shortcut ......................................................................................................................................................................... 8 APPLE(iPhone/iPad) ................................................................................................................................................ 8 Navigation .............................................................................................................................................................. 8 Scroll ...................................................................................................................................................................... 8 Rotor ...................................................................................................................................................................... 9 Interaction ............................................................................................................................................................. 9 Reading .................................................................................................................................................................. 9 Edit ....................................................................................................................................................................... 10 Control ................................................................................................................................................................. 11 8Dot ..................................................................................................................................................................... 11 Webrowser (for safari) ........................................................................................................................................ 12 3 Special function ................................................................................................................................................... 12 Keyboard Configuration ....................................................................................................................................... 13 Android .................................................................................................................................................................... 13 Navigation ............................................................................................................................................................ 13 Edit ....................................................................................................................................................................... 14 Control ........................................…

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KUNYOONG IBC CO., LTD. RM.1311 Digital Empire B/D, 1130 Buman-Ro, Geumcheon-Gu, Seoul, South Korea Date: April 26, 2021 Federal Communications Commission 7435 Oakland Mills Road Columbia MD 21046 c.c. UL Verification Services Certification Division 47173 Benicia Street Fremont, CA 94538, USA To whom it may concern: I, the undersigned, hereby authorize Ms. Chloe Lee / Deputy General Manager of KCTL Inc. and hereafter referred to as KCTL 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 Ms. Chloe Lee / Deputy General Manager of KCTL Inc. 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 KCTL 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; 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, Namchil Paik/ CEO

KUNYOONG IBC CO., LTD. RM.1311 Digital Empire B/D, 1130 Buman-Ro, Geumcheon-Gu, Seoul, South Korea CONFIDENTIALITY REQUEST Federal Communication Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21048 April 26, 2021 TO WHOM IT MAY CONCERN Pursuant to Paragraphs §0.457 and 0.459 of the Commission’s Rules (47 C.F.R.) and Section §552(b)(4) of the Freedom of Information Act, KUNYOONG IBC CO., LTD. requests confidentiality for the following products: FCC ID Number Product Title/Model 2ASP2KBD-002 Bdot/ KBD-002 The following exhibits contain trade secrets and proprietary information that could be of benefit to our competitors regarding the design of our product. This material is not customarily available to the general public and we request that it be withheld from public inspection. We request that the following information submitted be held permanent confidential treatment. Permanent Confidential Request -. Schematics -. Block Diagram -. Operational Description -. Antenna specification We also hereby request Short-Term Confidentiality for 180 days after the grant as outlined in Public Notice DA 04-1705. This provision will give temporary confidentiality of commercially sensitive information prior to product release. Short-Term Confidential Request -. External Photos -. Internal Photos -. Test set-up photo -. User Manual If you have any questions, please feel free to contact me at the address shown below. Sincerely, Namchil Paik/ CEO

http://www.kctl.co.kr This test report shall not be reproduced, except in full, without the written approval External photos of EUT http://www.kctl.co.kr This test report shall not be reproduced, except in full, without the written approval http://www.kctl.co.kr This test report shall not be reproduced, except in full, without the written approval http://www.kctl.co.kr This test report shall not be reproduced, except in full, without the written approval Charge Cable

<Label design and location> [Rear of the device]

http://www.kctl.co.kr This test report shall not be reproduced, except in full, without the written approval Internal photos of EUT http://www.kctl.co.kr This test report shall not be reproduced, except in full, without the written approval Chip Antenna http://www.kctl.co.kr This test report shall not be reproduced, except in full, without the written approval

http://www.kctl.co.kr This test report shall not be reproduced, except in full, without the written approval * RF Exposure 1. Regulation According to the KDB 447498 D01 V06, the following RF exposure evaluation shall to demonstrate RF exposure compliance. Unless specifically required by the published RF exposure KDB procedures, standalone 1-g head or body and 10-g extremity SAR evaluation for general population exposure conditions, by measurement or numerical simulation, is not required when the corresponding SAR Test Exclusion Threshold condition(s), listed below, is (are) satisfied. These test exclusion conditions are based on source-based time-averaged maximum conducted output power of the RF channel requiring evaluation, adjusted for tune-up tolerance, and the minimum test separation distance required for the exposure conditions. The minimum test separation distance defined in 4.1 f) is determined by the smallest distance from the antenna and radiating structures or outer surface of the device, according to the host form factor, exposure conditions and platform requirements, to any part of the body or extremity of a user or bystander. To qualify for SAR test exclusion, the test separation distances applied must be fully explained and justified, typically in the SAR measurement or SAR analysis report, by the operating configurations and exposure conditions of the transmitter and applicable host platform requirements, according to the required published RF exposure KDB procedures. When no other RF exposure testing or reporting are required, a statement of justification and compliance must be included in the equipment approval, in lieu of the SAR report, to qualify for SAR test exclusion. When required, the device specific conditions described in the other published RF exposure KDB procedures must be satisfied before applying these SAR test exclusion provisions; for example, handheld PTT two-way radios, handsets, laptops and tablets, etc. a) For 100 ㎒ to 6 ㎓ and test separation distances ≤ 50 ㎜, the 1-g and 10-g SAR test exclusion thresholds are determined by the following: [(max. power of channel, including tune-up tolerance, ㎽) / (min. test separation distance, ㎜)] ꞏ [√f(㎓)] ≤ 3.0 for 1-g SAR, and ≤ 7.5 for 10-g extremity SAR,30 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 ● The values 3.0 and 7.5 are referred to as numeric thresholds in step b) below The test exclusions are applicable only when the minimum test separation distance is ≤ 50 ㎜, and for transmission frequencies between 100 ㎒ and 6 ㎓. When the minimum test separation distance is < 5 ㎜, a distance of 5 ㎜ according to 4.1 f) is applied to determine SAR test exclusion. b) For 100 ㎒ to 6 ㎓ and test separation distances > 50 ㎜, the 1-g and 10-g SAR test exclusion thresholds are determined by the following (also illustrated in Appendix B): 1) {[Power allowed at numeric threshold for 50 ㎜ in step a)] + [(test separation distance – 50 ㎜)ꞏ(f(㎒)/150)]} ㎽, for 100 ㎒ to 1500 ㎒ 2) {[Power allowed at numeric threshold for 50 ㎜ in step a)] + [(test separation distance – 50 ㎜)ꞏ10]} ㎽, for > 1500 ㎒ and ≤ 6 ㎓ c) For frequencies below 100 ㎒, the following may be considered for SAR test exclusion (also illustrated http://www.kctl.co.kr This test report shall not be reproduced, except in full, without the written approval in Appendix C): 1) For test separation distances > 50 ㎜ and < 200 ㎜, the power threshold at the corresponding test separation distance at 100 ㎒ in step b) is multiplied by [1 + log(100/f(㎒))] 2) For test separation distances ≤ 50 ㎜, the power threshold determined by the equation in c) 1) for 50 ㎜ and 100 ㎒ is multiplied by ½ 3) SAR measurement procedures are not established below 100 ㎒. When SAR test exclusion cannot be applied, a KDB inquiry is required to determine SAR evaluation requirements for any SAR test results below 100 ㎒ to be acceptable. http://www.kctl.co.kr This test report shall not be reproduced, except in full, without the written approval 2. Result 2-1. Calculation Result of RF Exposure Mode Test frequency [㎒] Max. tune-up Power [㏈m] Conducted output power [㎽/] Min. test separation distance [㎜] SAR test exclusion thresholds ≤ 7.5 for 10-g SAR BLE/1 Mbps 2 440 -4.5 1.00 5.00 0.31 Note: 1. SAR test exclusion thresholds = [(max. power of channel, including tune-up tolerance, ㎽)/(min. test separation distance, ㎜)] ꞏ [√f(㎓)] = [(1.00)/(5)] ꞏ [√2.440] = 0.31 3. Target power and tolerance, Max tuneup power Mode Target power [㏈m] Tolerance [㏈] Max tuneup power [㏈m] Average Power [㏈m] Bluetooth LE_1 Mbps _2 402 ㎒ -5.5 ±1.0 -4.5 -5.58 Bluetooth LE_1 Mbps _2 440 ㎒ -5.5 ±1.0 -4.5 -5.11 Bluetooth LE_1 Mbps _2 480 ㎒ -5.5 ±1.0 -4.5 -6.29 4. RF Exposure Compliance Issue Therefore, EUT is not required the SAR Evaluation.

verify No.917322475686 KCTL Inc. 65, Sinwon-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, 16677, Korea TEL: 82-31-285-0894 FAX: 82-505-299-8311 www.kctl.co.kr Report No.: KR21-SRF0048-B Page (2) of (31) KCTL-TIR001-003/4 KP21-01896 REPORT REVISION HISTORY Date Revision Page No 2021-05-03 Originally issued - 2021-05-04 Updated 7, 25 2021-05-06 Updated 7 This report shall not be reproduced exc ept in full, without the written approval of KCTL Inc. This document may be altered or revised by KCTL Inc. personnel only, and shall be noted in the revision section of the document. Any alteration of this document not carried out by KCTL Inc. will constitute fraud and shall nullify the document. This test report is a general report that does not use the KOLAS accreditation mark and is not related to KS Q ISO/IEC 17025 and KOLAS accreditation. Note. The report No. KR21-SRF0048-A is superseded by the report No. KR21-SRF0048-B. General remarks for test reports Statement concerning the uncertainty of the measurement systems used for the tests Internal procedure used for type testing through which traceability of the measuring uncertainty has been established: Procedure number, issue date and title: Calculations leading to the reported values are on file with the testing laboratory that conducted the testing. Statement not required by the standard or client used for type testing KCTL Inc. 65, Sinwon-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, 16677, Korea TEL: 82-31-285-0894 FAX: 82-505-299-8311 www.kctl.co.kr Report No.: KR21-SRF0048-B Page (3) of (31) KCTL-TIR001-003/4 KP21-01896 CONTENTS 1. General information ...................................................................................................... 4 2. Device information ........................................................................................................ 4 2.1. Accessory information ............................................................................................ 4 2.2. Frequency/channel operations ................................................................................ 5 2.3. Duty Cycle Factor ................................................................................................... 5 3. Antenna requirement .................................................................................................... 6 4. Summary of tests .......................................................................................................... 7 5. Measurement uncertainty ............................................................................................. 8 6. Measurement results explanation example .................................................................. 9 7. Test results ................................................................................................................. 10 7.1. Maximum peak output power ................................................................................ 10 7.2. Peak Power Spectral Density ............................................................................... 13 7.3. 6 dB Bandwidth(DTS Channel Bandwidth) ........................................................... 15 7.4. Spurious Emission, Band Edge and Restricted bands .......................................... 17 7.5. Conducted Spurious Emission .............................................................................. 29 8. Measurement equipment ............................................................................................ 31 KCTL Inc. 65, Sinwon-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, 16677, Korea TEL: 82-31-285-0894 FAX: 82-505-299-8311 www.kctl.co.kr Report No.: KR21-SRF0048-B Page (4) of (31) KCTL-TIR001-003/4 KP21-01896 1. General information Client : KUNYOONG IBC CO., LTD. Address : RM.1311 Digital Empire B/D, 1130 Buman-Ro, Geumcheon-Gu, Seoul, South Korea Manufacturer : KUNYOONG IBC CO., LTD. Address : RM.1311 Digital Empire B/D, 1130 Buman-Ro, Geumcheon-Gu, Seoul, South Korea Laboratory : KCTL Inc. Address : 65, Sinwon-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, 16677, Korea Accreditations : FCC Site Designation No: KR0040, FCC Site Registration No: 687132 VCCI Registration No. : R-20080, G-20078, C-20059, T-20056 CAB Identifier: KR0040, ISED Number: 8035A KOLAS No.: KT231 2. Device information Equipment under test : Bdot Model : KBD-002 Modulation technique : GFSK (Bluetooth Low Energy) Number of channels : 40 ch (Bluetooth Low Energy) Frequency range : 2 402 ㎒ ~ 2 480 ㎒ (Bluetooth Low Energy) Power source : DC 3.7 V Antenna specification : Chip Antenna Antenna gain : 3.5 ㏈i Software version : GY_IBC_os_S Hardware version : GY_IBC_H Test device serial No. : N/A Operation temperature : -20 °C ~ 50 °C 2.1. Accessory information Equipment Manufacturer Model Serial No. Power source Lithium Battery The Han TW 301525 - DC 3.7 V KCTL Inc. 65, Sinwon-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, 16677, Korea TEL: 82-31-285-0894 FAX: 82-505-299-8311 www.kctl.co.kr Report No.: KR21-SRF0048-B Page (5) of (31) KCTL-TIR001-003/4 KP21-01896 2.2. Frequency/channel operations This device contains the following capabilities: Bluetooth Low Energy Ch. Frequency (㎒) 00 2 402 . . . . 19 2 440 . . . . 39 2 480 Table 2.2.1. Bluetooth Low Energy 2.3. Duty Cycle Factor Test mode Period (ms) On time (ms) Duty cycle Duty Cycle Factor (dB) (Linear) (%) 1M Bits/s, 37 Packet 0.625 0.395 0.631 5 63.15 2.00 Notes. 1. Duty cycle (Linear) = Ton time / Period 2. DCF(Duty cycle factor) = 10log(1/duty cycle) 1M Bits/s, 37 Packet KCTL Inc. 65, Sinwon-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, 16677, Korea TEL: 82-31-285-0894 FAX: 82-505-299-8311 www.kctl.co.kr Report No.: KR21-SRF0048-B Page (6) of (31) KCTL-TIR001-003/4 KP21-01896 3. Antenna requirement Requirement of FCC part section 15.203 An intentional radiator shall be designed to ensure that no antenna other than that furnished by the responsible party shall be used with the device. The use of a permanently attached antenna or of an antenna that…

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http://www.kctl.co.kr This test report shall not be reproduced, except in full, without the written approval Test setup photos - Below 30 ㎒ (9 ㎑ ~ 30 ㎒) - Below 1 ㎓ (30 ㎒ ~ 1 ㎓) http://www.kctl.co.kr This test report shall not be reproduced, except in full, without the written approval - Above 1 ㎓ (1 ㎓ ~ 3.5 ㎓) - Above 1 ㎓ (3.5 ㎓ ~ 18 ㎓) http://www.kctl.co.kr This test report shall not be reproduced, except in full, without the written approval - Above 18 ㎓