2A8NX07010012Fingertip Pulse Oximeter

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Shenzhen Smallsignal Technology Co.,Ltd. Add: Room 901-7,No.9,Jinxiu Middle Road,Longtian Street Pingshan District, Shenzhen City, Guangdong, 518122, China Tel: 0755-23010489 Fax: 0755-23010489 Email: [email protected] Date: 2022-11-23 To whom it may concern Dear Sir/Madam, We, Shenzhen Smallsignal Technology Co.,Ltd., hereby authorize China Certification ICT Co., Ltd (Dongguan) to act as a laboratory for testing and test report generation for the following project(s): (Product name: Fingertip Pulse Oximeter, Model name: Alpine20LBH, Alpine20B, Alpine20BA, Alpine20BH, Alpine20BHA, Alpine30B, Alpine30BA, Alpine30BH, Alpine30BHA, Alpine20LB, Alpine30LB, Alpine30LBH ) The chipset BK3432 supports Bluetooth BDR(GFSK), EDR(π/4-DQPSK, 8DPSK) and BLE Mode, But for this device, use BLE through software only. Sincerely, Signature: Printed Name: Qi He Title: Regulatory Engineer

QA-FR-170-B Shenzhen Smallsignal Technology Co.,Ltd. Add: Room 901-7,No.9,Jinxiu Middle Road,Longtian Street Pingshan District, Shenzhen City, Guangdong, 518122, China Tel: 0755-23010489 Fax: 0755-23010489 Email: [email protected] FCC Authorization Date: 2022-11-23 FEDERAL COMMUNICATIONS COMMISSION Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Agent Authorization To whom it may concern: We , Shenzhen Smallsignal Technology Co.,Ltd., Hereby authorizes China Certification ICT Co., Ltd (Dongguan) to act on its behalf in all matters relating to application for Equipment authorization, including the signing of all documents relating to these matters. All acts carried out by China Certification ICT Co., Ltd (Dongguan) on our behalf shall have the same effect as our own action. We, 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. 862. This authorization is valid until further written notice from the applicant. Sincerely Yours, Client’s signature Printed Name: Qi He Title: Regulatory Engineer

QA-FR-171-A Shenzhen Smallsignal Technology Co.,Ltd. Add: Room 901-7,No.9,Jinxiu Middle Road,Longtian Street Pingshan District, Shenzhen City, Guangdong, 518122, China Tel: 0755-23010489 Fax: 0755-23010489 Email: [email protected] FCC Confidential Authorization Date: 2022-11-23 FEDERA L COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Confidentiality Request regarding application for certification of FCC ID: 2A8NX07010012 In acco rdance with Sections 0.457 and 0.459 of the Commission’s Rules, (Shenzhen Smallsignal Technology Co.,Ltd.) hereby requests long-term confidential treatment of information accompanying this application as outlined below: •Block Di agram •Schematics •Operation Description The above m aterials contain proprietary and confidential information not customarily released to the public. The public disclosure of these materials provides unjustified benefits to its competitors in the market. Sincerely, Signatu re: Printed Name: Qi He Title: Regulatory Engineer

Shenzhen Smallsignal Technology Co.,Ltd. Add: Room 901-7,No.9,Jinxiu Middle Road,Longtian Street Pingshan District, Shenzhen City, Guangdong, 518122, China Tel: 0755-23010489 Fax: 0755-23010489 Email: [email protected] DECLARATION OF SIMILARITY Date: 2022-11-23 FEDERAL COMMUNICATIONS COMMISSION Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 D ear Sir or Madam: We, Shenzhen Smallsignal Technology Co.,Ltd., hereby declare that the product: Fingertip Pulse Oximeter, FCC ID: 2A8NX07010012. model: Alpine20B, Alpine20BA, Alpine20BH, Alpine20BHA, Alpine30B, Alpine30BA, Alpine30BH, Alpine30BHA, Alpine20LB, Alpine30LB, Alpine30LBH is electrically identical with the model: Alpine20LBH which was tested by China Certification ICT Co., Ltd (Dongguan) with the same electromagnetic emissions and electromagnetic compatibility characteristics. A description of the differences between those models and that are declared similar are as follows: They are the same product, and just the different model name, the rest are the same. Please contact me should there be need for any additional clarification or information. Best Regards, Signature: Printed Name: Qi He Title: Regulatory Engineer

EXHIBIT B - EUT EXTERNAL PHOTOGRAPHS

EXHIBIT C - EUT INTERNAL PHOTOGRAPHS Antenna

China Certification ICT Co., Ltd (Dongguan) Report No.: CR221049396-00 Page 36 of 36 5. RF EXPOSURE EVALUATION 5.1 Applicable Standard According to 447498 D04 Interim General RF Exposure Guidance v01, clause 2.1.2- 1-mW Test Exemption: Per §1.1307(b)(3)(i)(A), a single RF source is exempt RF device (from the requirement to show data demonstrating compliance to RF exposure limits, as previously mentioned) if the available maximum time-averaged power is no more than 1 mW, regardless of separation distance. This exemption applies to all operating configurations and exposure conditions, for the frequency range 100 kHz to 100 GHz, regardless of fixed, mobile, or portable device exposure conditions. This is a standalone exemption, and it cannot be applied in conjunction with any other test exemption. 5.2 Measurement Result Frequency (MHz) Conducted output power including Tune- up Tolerance 1-mW Test Exemption (dBm) (mW) 2402-2480 -2.0 0.63 Compliant Note: Antenna gain is 2.0 dBi(-0.15dBd) Result: Compliant. RF Exposure is exemption. ===== END OF REPORT =====

产品规格书 PRODUCT SPECIFICATION Customer: Shenzhen small signal technology co., LTD Customer’s p art number: Alpine20_30_BLE_Antenna P roduct description: Alpine20_30蓝牙天线 Manufacturer： R E V.： Shenzhen sharp focus technology co.,LTD V1.0 DA TE： 2021.12.27 1、产品技术指标（PRODUCT TECHNICAL SPECIFICATION） 电性能指标Electrical Specifications 频率范围Frequency Range (MHz) 2400-2500 频带宽度Bandwidth (MHz) 100 输入阻抗Input Impendence (Ω) 50 电压驻波比V.S.W.R <2.0 增益Gain (dBi) 2 极化形式Polarization Type 垂直Vertical 机械指标Mechanical Specifications 天线长度Antenna Length (mm) 9.5*7.8*0.1mm 辐射体Radiator 板载印制天线-铜皮 连接器型号Connect Type / 外壳颜色Radome Color 绿色 重量Weight (g) <0.5 存储环境范围 Storage Temp -40°C~+85°C 工作环境 Operating Temp -10°C~+65°C 存储湿度 Storage humidity 95％ 工作湿度 Working humidity 5%～95% 2、产品规格图(PRODUCT SPECIFICATION CHART) 3、驻波图（STATIONARY WAVE PATTERN） 4.增益效率值： 5.场型图 2400MHz 2450MHz 2500MHz

TEST REPORT Applicant: Shenzhen Smallsignal Technology Co.,Ltd. Address: Room 901-7,No.9,Jinxiu Middle Road,Longtian Street Pingshan District, Shenzhen, Guangdong, China,518122 FCC ID: 2A8NX07010012 Product Name: Fingertip Pulse Oximeter Standard(s): 47 CFR Part 15, Subpart C(15.247) ANSI C63.10-2013 KDB 558074 D01 15.247 Meas Guidance v05r02 The above equipment has been tested and found compliant with the requirement of the relative standards by China Certification ICT Co., Ltd (Dongguan) Report Number: CR221049396-00 Date Of Issue: 2022/11/21 Reviewed By: Sun Zhong Title: Manager Test Laboratory: China Certification ICT Co., Ltd (Dongguan) No. 113, Pingkang Road, Dalang Town, Dongguan, Guangdong, China Tel: +86-769-82016888 China Certification ICT Co., Ltd (Dongguan) Report No.: CR221049396-00 Page 2 of 36 Test Facility The Test site used by China Certification ICT Co., Ltd (Dongguan) to collect test data is located on the No. 113, Pingkang Road, Dalang Town, Dongguan, Guangdong, China. The lab has been recognized as the FCC accredited lab under the KDB 974614 D01 and is listed in the FCC Public Access Link (PAL) database, FCC Registration No. : 442868, the FCC Designation No. : CN1314. The lab has been recognized by Innovation, Science and Economic Development Canada to test to Canadian radio equipment requirements, the CAB identifier: CN0123. Declarations China Certification ICT Co., Ltd (Dongguan) is not responsible for the authenticity of any test data provided by the applicant. Data included from the applicant that may affect test results are marked with a triangle symbol “▲”. Customer model name, addresses, names, trademarks etc. are not considered data. Unless otherwise stated the results shown in this test report refer only to the sample(s) tested. This report cannot be reproduced except in full, without prior written approval of the Company. This report is valid only with a valid digital signature. The digital signature may be available only under the Adobe software above version 7.0. This report may contain data that are not covered by the accreditation scope and shall be marked with an asterisk “★”. China Certification ICT Co., Ltd (Dongguan) Report No.: CR221049396-00 Page 3 of 36 CONTENTS T EST FACILITY .......................................................................................................................................... 2 DECLARATIONS .......................................................................................................................................... 2 1. GENERAL INFORMATION .................................................................................................... 5 1.1 PRODUCT DESCRIPTION FOR EQUIPMENT UNDER TEST (EUT) ....................................................... 5 1.2 DESCRIPTION OF TEST CONFIGURATION ........................................................................................... 7 1.2.2 Support Equipment List and Details .............................................................................................................. 7 1.2.3 Support Cable List and Details ...................................................................................................................... 7 1.2.4 Block Diagram of Test Setup ......................................................................................................................... 7 1.3 MEASUREMENT UNCERTAINTY .......................................................................................................... 8 2. SUMMARY OF TEST RESULTS ............................................................................................ 9 3. REQUIREMENTS AND TEST PROCEDURES .................................................................. 10 3.1 AC LINE CONDUCTED EMISSIONS .................................................................................................... 10 3.1.1 Applicable Standard ..................................................................................................................................... 10 3.1.2 EUT Setup.................................................................................................................................................... 11 3.1.3 EMI Test Receiver Setup ............................................................................................................................. 11 3.1.4 Test Procedure ............................................................................................................................................. 12 3.1.5 Corrected Amplitude & Margin Calculation ................................................................................................ 12 3.2 RADIATION SPURIOUS EMISSIONS .................................................................................................... 13 3.2.1 Applicable Standard ..................................................................................................................................... 13 3.2.2 EUT Setup.................................................................................................................................................... 13 3.2.3 EMI Test Receiver & Spectrum Analyzer Setup ......................................................................................... 14 3.2.4 Test Procedure ............................................................................................................................................. 14 3.2.5 Corrected Amplitude & Margin Calculation ................................................................................................ 14 3.3 6 DB EMISSION BANDWIDTH: ............................................................................................................ 15 3.3.1 Applicable Standard ..................................................................................................................................... 15 3.3.2 EUT Setup.............................................................…

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EXHIBIT D - TEST SETUP PHOTOGRAPHS Radiated Emission Below 1GHz View Radiated Emission Above 1GHz View