2A53V-KS1NKlatre K Series KS1

Report No.: BL-SZ2270923-AW 1 / 4 EUT EXTERNAL PHOTOS FRONT VIEW OF EUT REAR VIEW OF EUT Report No.: BL-SZ2270923-AW 2 / 4 LEFT VIEW OF EUT RIGHT VIEW OF EUT Report No.: BL-SZ2270923-AW 3 / 4 TOP VIEW OF EUT BOTTOM VIEW OF EUT Report No.: BL-SZ2270923-AW 4 / 4 Accessory-Power Cable

220315000001 SN编码规则： 生产年份为2位，例如2022应为22 生产月份为2位生产日期为2位 流水号 从000001，000002......开始，按月进行清零 且同彩盒贴纸上的SN序列号一致.首单量产流水号从001000开始；

Report No.: BL-SZ2270923-AI 1 / 3 EUT INTERNAL PHOTOS EUT UNCOVER VIEW 1 EUT UNCOVER VIEW 2 Report No.: BL-SZ2270923-AI 2 / 3 MAIN BOARD TOP VIEW MAIN BOARD REAR VIEW Wire Antenna RF Chip Report No.: BL-SZ2270923-AI 3 / 3 BATTERY (FRONT) BATTERY (REAR)

Report No.: BL-SZ2270923-701 Tel: +86-755-66850100 E-mail: [email protected] Page No. 1 / 10 Web: www.titcgroup.com Template No.: TRP-FCC-Portable-2 (2022-07-06) Add: Block B, 1/F, Baisha Science and Technology Park, Shahe Xi Road, Nanshan District, Shenzhen, Guangdong Province, P. R. China TEST REPORT Applicant: Klatre innovation Co.,Ltd. Address: Building B, No508, Pingshan 1 Rd, Xili, Nanshan, Shenzhen, Guangdong Province, 518000 China Equipment Type: Klatre K Series KS1 Model Name: KS1-N Brand Name: N/A FCC ID: 2A53V-KS1N Test Standard: 47 CFR Part 2.1093 KDB 447498 D04 Test Date： Jul. 26, 2022 – Aug. 01, 2022 Date of Issue: Aug. 25, 2022 ISSUED BY: Shenzhen BALUN Technology Co., Ltd. Tested by: Julie zhu Checked by: Zong Liyao Approved by: Wei Yanquan (Chief Engineer) _______________ _______________ _______________ Report No.: BL-SZ2270923-701 Tel: +86-755-66850100 E-mail: [email protected] Page No. 2 / 10 Web: www.titcgroup.com Template No.: TRP-FCC-Portable-2 (2022-07-06) Add: Block B, 1/F, Baisha Science and Technology Park, Shahe Xi Road, Nanshan District, Shenzhen, Guangdong Province, P. R. China Revision History Version Issue Date Revisions Content Rev. 01 Aug. 18, 2022 Initial Issue Rev. 02 Aug. 25, 2022 Update the FCC ID TABLE OF CONTENTS 1 GENERAL INFORMATION ........................................................................................................ 3 1.1 Test Laboratory ............................................................................................................ 3 1.2 Test Location ................................................................................................................ 3 1.3 Test Environment Condition .......................................................................................... 3 2 PRODUCT INFORMATION ....................................................................................................... 4 2.1 Applicant Information .................................................................................................... 4 2.2 Manufacturer Information .............................................................................................. 4 2.3 Factory Information ....................................................................................................... 4 2.4 General Description for Equipment under Test (EUT) ................................................... 4 2.5 Ancillary Equipment ...................................................................................................... 5 2.6 Technical Information ................................................................................................... 5 3 SUMMARY OF TEST RESULT ................................................................................................. 6 3.1 Test Standards ............................................................................................................. 6 4 DEVICE CATEGORY AND LEVELS LIMITS ............................................................................. 7 5 ASSESSMENT RESULT ........................................................................................................... 9 5.1 Output Power ............................................................................................................... 9 5.2 Turn-up power .............................................................................................................. 9 5.3 RF Exposure Evaluation Result .................................................................................... 9 5.4 Conclusion .................................................................................................................... 9 Report No.: BL-SZ2270923-701 Tel: +86-755-66850100 E-mail: [email protected] Page No. 3 / 10 Web: www.titcgroup.com Template No.: TRP-FCC-Portable-2 (2022-07-06) Add: Block B, 1/F, Baisha Science and Technology Park, Shahe Xi Road, Nanshan District, Shenzhen, Guangdong Province, P. R. China 1 GENERAL INFORMATION 1.1 Test Laboratory Name Shenzhen BALUN Technology Co., Ltd. Address Block B, 1/F, Baisha Science and Technology Park, Shahe Xi Road, Nanshan District, Shenzhen, Guangdong Province, P. R. China Phone Number +86 755 6685 0100 1.2 Test Location Name Shenzhen BALUN Technology Co., Ltd. Location Block B, 1/F, Baisha Science and Technology Park, Shahe Xi Road, Nanshan District, Shenzhen, Guangdong Province, P. R. China 1/F, Building B, Ganghongji High-tech Intelligent Industrial Park, No. 1008, Songbai Road, Yangguang Community, Xili Sub-district, Nanshan District, Shenzhen, Guangdong Province, P. R. China Accreditation Certificate The laboratory is a testing organization accredited by FCC as a accredited testing laboratory. The designation number is CN1196. 1.3 Test Environment Condition Ambient Temperature 18°C to 25°C Ambient Relative Humidity 30% to 70% Report No.: BL-SZ2270923-701 Tel: +86-755-66850100 E-mail: [email protected] Page No. 4 / 10 Web: www.titcgroup.com Template No.: TRP-FCC-Portable-2 (2022-07-06) Add: Block B, 1/F, Baisha Science and Technology Park, Shahe Xi Road, Nanshan District, Shenzhen, Guangdong Province, P. R. China 2 PRODUCT INFORMATION 2.1 Applicant Information Applicant Klatre innovation Co.,Ltd. Address Building B, No508, Pingshan 1 Rd, Xili, Nanshan, Shenzhen, Guangdong Province, 518000 China 2.2 Manufacturer Information Manufacturer Klatre innovation Co.,Ltd. Address Building B, No508, Pingshan 1 Rd, Xili, Nanshan, Shenzhen, Guangdong Province, 518000 China 2.3 Factory Information Factory Cosonic Electroacoustic Technology Co., Ltd. Address No.151, Shipai Section, Dongyuan Avenue, Shipai Town, Dongguan City, Guangdong Province, P.R. China. 2.4 General Description for Equipment under Test (EUT) EUT Name Klatre K Series KS1 Model Name Under Test KS1-N Series Model Name N/A Description of Model name differentiation N/A Hardware Version N/A Software Version N/A Dimensions (Approx.) N/A Weight (Approx.) N/A Report No.: BL-SZ2270923-701 Tel: +86-755-…

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Shenzhen Qianmu Communication Technology Co.,Ltd. 专注天线方案、设计与生产 Model：LW39 2022.8.30 Version:A2 2 Bluetooth Watches ModelDW2121 Antenna overview Antenna status Antenna statusAntenna formDesign areaMatch changes Bluetooth antenna BT2.4GHz~2.5GHz D:0.6mm L:25mm Wire bracket N/A Prototype status Debug machine Environmental treatment dBiDecibel relative isotropic antenna TxTransmit frequency RxReceive frequency TRPTotal Radiated Power TISTotal Isotropic Sensitivity VSWRVoltage Standing Wave Ratio GSMGlobal Service for Mobile communication DCSDigital Communication System PCSPersonal Communication System PHSPersonal Handly-phone System SARSpecific Absorption Rate PCBPrinted Circuit Board CDMACode Division Multiple Access WCDMA Wideband Code Division Multiple Access LTELong Term Evolution 3 Glossary 4 Test Data 1. BT antenna RL 3D Radiation Pattern 3D Radiation Pattern 3D Radiation Pattern 4 Test Data BT antenna efficiency:

Report No.: BL-SZ2270923-601 Tel: +86-755-66850100 E-mail: [email protected] Page No. 1 / 71 Web: www.titcgroup.com Template No.: TRP-FCC Part 15.247 (2022-01-12) Add: Block B, 1/F, Baisha Science and Technology Park, Shahe Xi Road, Nanshan District, Shenzhen, Guangdong Province, P. R. China TEST REPORT Applicant: Klatre innovation Co.,Ltd. Address: Building B, No508, Pingshan 1 Rd, Xili, Nanshan, Shenzhen, Guangdong Province, 518000 China Equipment Type: Klatre K Series KS1 Model Name: KS1-N Brand Name: N/A FCC ID: 2A53V-KS1N Test Standard: 47 CFR Part 15 Subpart C (refer section 3.1) Test Date： Jul. 26, 2022 – Aug. 01, 2022 Date of Issue: Aug. 30, 2022 ISSUED BY: Shenzhen BALUN Technology Co., Ltd. Tested by: Julie zhu Checked by: Ye Hongji Approved by: Liao Jianming (Technical Director) _______________ _______________ _______________ Report No.: BL-SZ2270923-601 Tel: +86-755-66850100 E-mail: [email protected] Page No. 2 / 71 Web: www.titcgroup.com Template No.: TRP-FCC Part 15.247 (2022-01-12) Add: Block B, 1/F, Baisha Science and Technology Park, Shahe Xi Road, Nanshan District, Shenzhen, Guangdong Province, P. R. China Revision History Version Issue Date Revisions Rev. 01 Aug. 18, 2022 Initial Issue Rev. 02 Aug. 25, 2022 1. 2.5 Changing the Product Type to Portable 2. 4.2 Test Equipment List Add a row of devices 3. Update GFSK (BLE 2Mbps) data chart in section A1 Rev. 03 Aug. 30, 2022 Modified Antenna Gain in Section 2.4 TABLE OF CONTENTS 1 GENERAL INFORMATION ........................................................................................................ 4 1.1 Test Laboratory ............................................................................................................ 4 1.2 Test Location ................................................................................................................ 4 2 PRODUCT INFORMATION ....................................................................................................... 5 2.1 Applicant Information .................................................................................................... 5 2.2 Manufacturer Information .............................................................................................. 5 2.3 Factory Information ....................................................................................................... 5 2.4 General Description for Equipment under Test (EUT) ................................................... 5 2.5 Technical Information ................................................................................................... 6 2.6 Additional Instructions ................................................................................................... 7 3 SUMMARY OF TEST RESULTS ............................................................................................... 8 3.1 Test Standards ............................................................................................................. 8 3.2 Test Verdict .................................................................................................................. 8 4 GENERAL TEST CONFIGURATIONS ...................................................................................... 9 4.1 Test Environments ........................................................................................................ 9 4.2 Test Equipment List ...................................................................................................... 9 4.3 Test Software List ......................................................................................................... 9 4.4 Measurement Uncertainty ........................................................................................... 10 4.5 Description of Test Setup ........................................................................................... 10 4.6 Measurement Results Explanation Example ............................................................... 13 Report No.: BL-SZ2270923-601 Tel: +86-755-66850100 E-mail: [email protected] Page No. 3 / 71 Web: www.titcgroup.com Template No.: TRP-FCC Part 15.247 (2022-01-12) Add: Block B, 1/F, Baisha Science and Technology Park, Shahe Xi Road, Nanshan District, Shenzhen, Guangdong Province, P. R. China 5 TEST ITEMS ........................................................................................................................... 14 5.1 Antenna Requirements ............................................................................................... 14 5.2 Output Power ............................................................................................................. 15 5.3 Occupied Bandwidth ................................................................................................... 17 5.4 Conducted Spurious Emission .................................................................................... 18 5.5 Band Edge (Authorized-band band-edge) ................................................................... 20 5.6 Conducted Emission ................................................................................................... 22 5.7 Radiated Spurious Emission ....................................................................................... 23 5.8 Band Edge (Restricted-band band-edge) .................................................................... 28 5.9 Power Spectral density (PSD) .................................................................................... 29 ANNEX A TEST RESULT ........................................................................................................... 30 A.1 Output Power, Duty Cycle .......................................................................................... 30 A.2 Occupied Bandwidth ................................................................................................... 34 A.3 Conducted Spurious Emissions ...................................................................…

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Report No.: BL-SZ2270923-AR 1 / 4 TEST SETUP PHOTOS 1 Radiated Test Photo Below 30MHz Close-up Report No.: BL-SZ2270923-AR 2 / 4 30MHz-1GHz Above 1GHz Report No.: BL-SZ2270923-AR 3 / 4 Close-up 2 Conducted Test Photo Conducted Test-BLE Report No.: BL-SZ2270923-AR 4 / 4 3 Conducted Emissions Test Photo 1 Test Photo 2