2BB5C-AYO24AYO

Novalogy Ltd. Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: August 1, 2023 FCC ID: 2BB5C-AYO24 Ref. #1: Attestation Statements Part 2.911(d)(5)(i) Filing Novalogy Ltd. certifies that 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. Ref. #2: Attestation Statements Part 2.911(d)(5)(ii) Filing Novalogy Ltd. certifies that, as of the date of the filing of the application, the applicant is not identified on the Covered List as an entity producing “covered” equipment. Company name: Novalogy Ltd. Contact Name: Aleksandar Dimitrov Address: 37 Georgi Benkovski Str., 1 st floor, 1000 Sofia, Bulgaria Telephone: +34 663 950 156 Email: [email protected] Sincerely, Signature:

Novalogy Ltd. Antenna Spec 1. MODEL：AYO24 P/N（料号）：E12-01542-01 2. Applications This antenna is designed for Bluetooth. 3. Electrical Characteristics Frequency Band：2400MHz～2500MHz Polarization Gain : -0.5dBi Max peak gain: 0 dBi Type peak gain: 0 dBi Impedance：50Ω Material: Cable Wire 80mm 28# 1 pin Black UL1007 Feature: This is a Cable Wire BT antenna. λ/4 double pole type. 4. Antenna Dimension - 3.2mm 11mm 5. Typical Free Space Radiation Pattern 3D Radiation Pattern Total Po wer (d Bm ) -14 0 -10 -6 X Y Z Azim uth = 0.0 Elevation = 0.0 Roll = 0.0 XOY Total Po wer (d Bm ) -14 0 -10 -6 YX Z Azim uth = 0.0 Elevation = 90.0 Roll = 0.0 XOZ Total Po wer (d Bm ) -14 0 -10 -6 Y Z X Azim uth = 90.0 Elevation = 0.0 Roll = -90.0 YOZ 6. Typical Free Space Radiation Pattern 2D Radiation Pattern

Shenzhen Srhythm Industry Co., Ltd. Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Date: August 1, 2023 Subject; Request for Confidentiality FCC ID: 2BB5C-AYO24 To Whom It May Concern, Pursuant to the provisions of the Commission’s rules Title 47 Sections §0.457 and §0.459, we are requesting the Commission to withhold the following attachment(s) as confidential documents from public disclosure indefinitely. These documents contain detailed system and equipment descriptions and are considered as proprietary information in operation of the equipment. The public disclosure of these documents might be harmful to our company and would give competitors an unfair advantage in the market. Schematic Diagram Block Diagram Parts List Operational Description Tune-up Procedure In additional to above mentioned documents, in order to comply with the marketing regulations in Title 47 CFR §2.803 and the importation rules in Title 47 CFR §2.1204, while ensuring that business sensitive information remains confidential until the actual marketing of newly authorized devices, we request Short Term Confidentiality of the following attachment(s); External Photos Test Setup Photos Internal Photos User Manual For 45 days, pursuant to Public Notice DA 04-1705. OR For 180 days pursuant to KDB 726920 D01. It is our understanding that all measurement test reports, FCC ID label format and correspondence during the certification review process cannot be granted as confidential documents and this information will be available for public review once the grant of equipment authorization is issued. Sincerely, Signature: Name: Aleksandar Dimitrov Title: Manager

Effective Date: April 2, 2020 QSF 7.6.4-8 – Agent Authorization Letter Template Page 1 of 1 Revision Date: Revision: 0 Novalogy Ltd. Date：8/1/2023 Product Model Number: AYO24 FCC ID:2BB5C-AYO24 To whom it may concern, Re: Product Certification Representative Authorization Letter We authorize QAI Laboratories Ltd. 3980 North Fraser Way, Burnaby B.C. Canada V5J 5K5 to act on our behalf on all matters concerning the above named equipment. This shall include the following: • Testing • Approval applications and procedures We declare that ORGANIZATION. is allowed to forward all information related to the approval project to the applied certification body and to the notification entities and to discuss any issues concerning the approval application. Any and all acts carried out by ORGANIZATION. on our behalf shall have the same effect as acts of our own. By: Aleksandar Dimitrov Contact Listed on FCC Wesbite Title: Manager Email: [email protected] On behalf of: Novalogy Ltd.

Page 1 of 3 Report No.: LGT23G056 Appendix - Photographs of EUT Constructional Details Model: AYO24 Photo 1 Photo 2 Page 2 of 3 Report No.: LGT23G056 Photo 3 Photo 4 Page 3 of 3 Report No.: LGT23G056 Photo 5 Photo 6

FCC ID:2BB5C-AYO24

Page 1 of 4 Report No.: LGT23G054 Appendix - Photographs of EUT Constructional Details Model: AYO24 Photo 1 Photo 2 BT ANT Page 2 of 4 Report No.: LGT23G054 Photo 3 Photo 4 Page 3 of 4 Report No.: LGT23G054 Photo 5 Photo 6 Page 4 of 4 Report No.: LGT23G054 Photo 7 Photo 8

FCC ID: 2BB5C-AYO24 RF EXPOSURE EVALUATION METHOD- KDB 447498 D01V06 SAR Test Exclusion Thresholds for 100 MHz – 6 GHz and ≤ 50 mm Approximate SAR Test Exclusion Power Thresholds at Selected Frequencies and Test Separation Distances are illustrated in the following Table. The 1-g and 10-g SAR test exclusion thresholds for 100 MHz to 6 GHz at test separation distances ≤ 50 mm are determined by: [(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance, mm)] · [√f(GHz)] ≤ 3.0 for 1-g SAR and ≤ 7.5 for 10-g extremity SAR,where f(GHz) is the RF channel transmit frequency in GHz Power and distance are rounded to the nearest mW and mm before calculation The result is rounded to one decimal place for comparison The test exclusions are applicable only when the minimum test separation distance is ≤ 50 mm and for transmission frequencies between 100 MHz and 6 GHz. When the minimum test separation distance is < 5 mm, a distance of 5 mm is applied to determine SAR test exclusion. FCC ID: 2BB5C-AYO24 BT The Worst Case Mode 2402-2480MHz Detector PEAK BLE 1M GFSK-2402MHz -4.0±1dBm BLE 1M GFSK-2440MHz -3.5±1dBm BLE 1M GFSK-2480MHz -3.5±1dBm BLE 2M GFSK-2402MHz -4.0±1dBm BLE 2M GFSK-2440MHz -3.5±1dBm BLE 2M GFSK-2480MHz -3.5±1dBm Remark:The worst case gain of the antenna is 0dBi. 0dBi logarithmic terms convert to numeric result is nearly 1 Bluetooth BLE MAX Mode Frequency (GHz) Tune up Power (dBm) Tune up Power (mW) Result Limit 1M 2.48 -2.5 0.56 0.18 3 2M 2.48 -2.5 0.56 0.18 3 Threshold at which no SAR required is 0.18≤ 3.0 for 1-g SAR, Separation distance is 5mm.

The test report is effective only with both signature and specialized stamp. This report shall not be reproduced except in full without the written approval of the Laboratory. The results in this report only apply to the tested sample. Shenzhen LGT Test Service Co., Ltd. Tel: 0755-89668180 E-mail:[email protected] Web: www.lgt-cert.com Room 205, Building 13, Zone B, Zhenxiong Industrial Park, No.177, Renmin West Road, Jinsha, Kengzi Street, Pingshan District, Shenzhen, Guangdong, China RF TEST REPORT Product Name: AYO Model Name: AYO24 FCC ID: 2BB5C-AYO24 Issued For : Novalogy Ltd. 37 Georgi Benkovski Str., 1st floor, 1000 Sofia, Bulgaria Issued By : Shenzhen LGT Test Service Co., Ltd. Room 205, Building 13, Zone B, Zhenxiong Industrial Park, No.177, Renmin West Road, Jinsha, Kengzi Street, Pingshan District, Shenzhen, Guangdong, China Report Number: LGT23G054RF02 Sample Received Date: Jul. 17, 2023 Date of Test: Jul. 17, 2023 –Jul. 27, 2023 Date of Issue: Jul. 27, 2023 Report No.: LGT23G054RF02 Page 2 of 55 TEST REPORT CERTIFICATION Applicant: Novalogy Ltd. Address: 37 Georgi Benkovski Str., 1st floor, 1000 Sofia, Bulgaria Manufacturer: Novalogy Ltd. Address: 37 Georgi Benkovski Str., 1st floor, 1000 Sofia, Bulgaria Product Name: AYO Trademark: AYO Model Name: AYO24 Sample Status: Normal APPLICABLE STANDARDS STANDARD TEST RESULTS FCC Part 15.247, Subpart C ANSI C63.10-2013 PASS Prepared by: Approved by: Zane Shan Vita Li Engineer Technical Director Report No.: LGT23G054RF02 Page 3 of 55 Table of Contents Page 1. SUMMARY OF TEST RESULTS 6 1.1 TEST FACTORY 7 1.2 MEASUREMENT UNCERTAINTY 7 2. GENERAL INFORMATION 8 2.1 GENERAL DESCRIPTION OF THE EUT 8 2.2 DESCRIPTION OF THE TEST MODES 10 2.3 TEST SOFTWARE AND POWER LEVEL 10 2.4 DESCRIPTION OF NECESSARY ACCESSORIES AND SUPPORT UNITS 11 2.5 EQUIPMENTS LIST 12 3. EMC EMISSION TEST 13 3.1 CONDUCTED EMISSION MEASUREMENT 13 3.2 TEST PROCEDURE 14 3.3 TEST SETUP 14 3.4 EUT OPERATING CONDITIONS 14 3.5 TEST RESULTS 15 4. RADIATED EMISSION MEASUREMENT 17 4.1 RADIATED EMISSION LIMITS 17 4.2 TEST PROCEDURE 19 4.3 TEST SETUP 20 4.4 EUT OPERATING CONDITIONS 20 4.5 FIELD STRENGTH CALCULATION 21 4.6 TEST RESULTS 22 4.7 TEST RESULTS (BAND EDGE REQUIREMENTS) 27 5. CONDUCTED SPURIOUS & BAND EDGE EMISSION 29 5.1 LIMIT 29 5.2 TEST PROCEDURE 29 5.3 TEST SETUP 29 5.4 EUT OPERATION CONDITIONS 29 5.5 TEST RESULTS 29 6. POWER SPECTRAL DENSITY TEST 30 6.1 LIMIT 30 6.2 TEST PROCEDURE 30 6.3 TEST SETUP 30 Report No.: LGT23G054RF02 Page 4 of 55 Table of Contents Page 6.4 EUT OPERATION CONDITIONS 30 6.5 TEST RESULTS 30 7. BANDWIDTH TEST 31 7.1 LIMIT 31 7.2 TEST PROCEDURE 31 7.3 TEST SETUP 31 7.4 EUT OPERATION CONDITIONS 31 7.5 TEST RESULTS 31 8. PEAK OUTPUT POWER TEST 32 8.1 LIMIT 32 8.2 TEST PROCEDURE 32 8.3 TEST SETUP 32 8.4 EUT OPERATION CONDITIONS 32 8.5 TEST RESULTS 32 9. ANTENNA REQUIREMENT 33 9.1 STANDARD REQUIREMENT 33 9.2 EUT ANTENNA 33 APPENDIX I:TEST RESULTS 34 DUTY CYCLE 34 MAXIMUM PEAK CONDUCTED OUTPUT POWER 37 -6DB BANDWIDTH 38 OCCUPIED CHANNEL BANDWIDTH 41 MAXIMUM POWER SPECTRAL DENSITY LEVEL 44 BAND EDGE 47 CONDUCTED RF SPURIOUS EMISSION 51 Report No.: LGT23G054RF02 Page 5 of 55 Revision History Rev. Issue Date Contents 00 Jul. 27, 2023 Initial Issue Report No.: LGT23G054RF02 Page 6 of 55 1. SUMMARY OF TEST RESULTS Test procedures according to the technical standards: KDB 558074 D01 15.247 Meas Guidance v05r02. FCC Part 15.247, Subpart C Standard Section Test Item Judgment Remark 15.207 Conducted Emission PASS -- 15.247 (a)(2) 6dB Bandwidth PASS -- 15.247 (b)(3) Output Power PASS -- 15.209 Radiated Spurious Emission PASS -- 15.247 (d) Conducted Spurious & Band Edge Emission PASS -- 15.247 (e) Power Spectral Density PASS -- 15.205 Restricted Band Edge Emission PASS -- Part 15.247(d)/ Part 15.209(a) Band Edge Emission PASS -- 15.203 Antenna Requirement PASS -- NOTE: (1) ‘N/A’ denotes test is not applicable in this Test Report. (2) All tests are according to ANSI C63.10-2013. Report No.: LGT23G054RF02 Page 7 of 55 1.1 TEST FACTORY Company Name: Shenzhen LGT Test Service Co., Ltd. Address: Room 205, Building 13, Zone B, Zhenxiong Industrial Park, No.177, Renmin West Road, Jinsha, Kengzi Street, Pingshan District, Shenzhen, Guangdong, China Accreditation Certificate A2LA Certificate No.: 6727.01 FCC Registration No.: 746540 CAB ID: CN0136 1.2 MEASUREMENT UNCERTAINTY The reported uncertainty of measurement y ± U, where expended uncertainty U is based on a standard uncertainty multiplied by a coverage factor of k=2, providing a level of confidence of approximately 95 %. No. Item Uncertainty 1 RF output power, conducted ±0.68dB 2 Unwanted Emissions, conducted ±2.988dB 3 All emissions, radiated 9K-30MHz ±2.84dB 4 All emissions, radiated 30M-1GHz ±4.39dB 5 All emissions, radiated 1G-6GHz ±5.10dB 6 All emissions, radiated>6G ±5.48dB 7 Conducted Emission (9KHz-150KHz) ±2.79dB 8 Conducted Emission (150KHz-30MHz) ±2.80dB Note: The measurement uncertainty is not included in the test result. Report No.: LGT23G054RF02 Page 8 of 55 2. GENERAL INFORMATION 2.1 GENERAL DESCRIPTION OF THE EUT Product Name: AYO Trademark: AYO Model Name: AYO24 Series Model: N/A Model Difference: N/A Product Description: Operation Frequency: 2402~2480 MHz Modulation Type: GFSK Radio Technology: BLE Bluetooth Configuration: BLE (1M PHY, 2M PHY) Number Of Channel: 40 Antenna Type PCB Antenna Gain (dBi) 0 Channel List: Please refer to the Note 3. Power Supply: DC 5V Battery: DC 3.7V Hardware Version: V1.0 Software Version: V1.0 Connecting I/O Port(s): Please refer to the Note 1. Note: 1. For a more detailed features description, please refer to the manufacturer’s specifications or the User Manual. 2. The antenna information refers the manufacturer provide report, applicable only to the tested sample identified in the report. Due to the incorrect antenna information, a series of problems such as the accuracy of the test results will be borne by the customer. Report No.: LGT23G054RF02 Page 9 of 55 3. Ch…

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Page 1 of 2 Report No.: LGT23G054 Appendix - Test Setup photos Set-up for Radiated Spurious Emission, Below 1GHz Set-up for Radiated Spurious Emission, Above 1GHz Page 2 of 2 Report No.: LGT23G054 Set-up for Conducted Emission