2BHYT-SHS805D16Alloy Leak Sensor+ v1.2

Dongguan Sanhe Sheng Technology Co., LTD Date: 2024.09.09 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD21046 Ref: Attestation Statements Part 2.911(d) (5) (i) Filing SUBJECT: FCC Application for FCC ID: 2BHYT-SHS805D16 To Whom It May Concern: Dongguan Sanhe Sheng Technology Co., LTD (“the applicant”) 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. Sincerely, Signature: Print name: DongMei Liang

Dongguan Sanhe Sheng Technology Co., LTD Date: 2024.09.09 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD21046 Ref: Attestation Statements Part 2.911(d) (5) (ii) Filing SUBJECT: FCC Application for FCC ID: 2BHYT-SHS805D16 To Whom It May Concern: Dongguan Sanhe Sheng Technology Co., LTD (“the applicant”) certifies that, as of the date of the filing of the application, the applicant is not identified on the Covered List (as a specifically named entity or any of its subsidiaries or affiliates) as an entity producing “covered” equipment. Sincerely, Signature: Print name: DongMei Liang

THREE STONES MEDIA LLC U.S. Agent Letter of Attestation To: Federal Communications Commission 7435 Oakland Mills Road, Columbia, MD 21046, USA Date: 9/12/2024 Ref: Attestation Statement – Part2.911(d)(7) filing FCC ID： 2BHYT-SHS805D16 Dongguan Sanhe Sheng Technology Co., LTD (“the applicant”) certifies that, as of the date of the filing of the application, THREE STONES MEDIA LLC(“the agent”) is our designated U.S. agent for service of process for the abovereference FCC ID. The applicant accepts to maintain an agent for service of process in the United States forno less than one year after either the grantee has permanently terminated all marketing and importation of theapplicable equipment within the U.S., or the conclusion of any Commission-related administrative or judicialproceeding involving the equipment, whichever is later. The applicant further acknowledges it is ourresponsibility to inform the FCC whenever the agent information changes. THREE STONES MEDIA LLC ("the agent) understand it is the agent's obligation to accept service of process in the United States for matters related to the applicable equipment, and at the physical U.S. address and email address. Designated U.S. Agent Company Name: THREE STONES MEDIA LLC FRN: 0033401761 GC: 2A99E Address: 1200 Broadway St. APT 329, Los Angeles, CA90015 Signature: Contact Person: Sijie Zhang Tel: +1 267 909 3692 Email: [email protected] Applicant Company Name: Dongguan Sanhe Sheng Technology Co., LTD Address: Room 601, Building 1, Changchun Industrial Park, No.37, Tianxi Road, Fenggang Town, Dongguan, China Signature: Contact Person: DongMei Liang GC: 2BHYT FRN: 0035752484 Tel: (0769) 8269 5586 Email: [email protected]

< Dongguan Sanhe Sheng Technology Co., LTD > Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 9/12/2024 Subject; Request for Confidentiality FCC ID: 2BHYT-SHS805D16 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 Operational Description Tune up procedure BOM 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 pursuantto 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: DongMei Liang Title: Merchandiser Email: [email protected]

Dongguan Sanhe Sheng Technology Co., LTD Family models declaration letter. 9/12/2024 We Company: Dongguan Sanhe Sheng Technology Co., LTD Address: Room 601, Building 1, Changchun Industrial Park, No.37, Tianxi Road, Fenggang Town, Dongguan, China Product: Air-pressure eye massager Model Name: SHS805D16 Family Model: SHS805D01-SHS805D20 FCC ID: 2BHYT-SHS805D16 Except for the appearance color, all models have the same circuit and RF module. We (Dongguan Sanhe Sheng Technology Co., LTD) hereby state that all the models are electrical identical including the same software parameter and hardware design (i.e., circuit design, PCB Layout, RF module/circuit, antenna type(s) and antenna location, components on PCB, etc.), same mechanical structure and design (including product enclosure, materials, etc.), the only difference is the model names. Thanks Sincerely, Signature [Name] DongMei Liang [Title] Merchandiser [email protected]

Dongguan Sanhe Sheng Technology Co., LTD Date: September 12, 2024 FCC ID: 2BHYT-SHS805D16 Model Number: SHS805D16, SHS805D01-SHS805D20 To: Federal Communication Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21048 To Whom It May Concern, We, Dongguan Sanhe Sheng Technology Co., LTD declare that this EUT (FCC ID: 2BHYT-SHS805D16) will conduct FCC compliance testing, the SDOC part recognized test lab(Shenzhen NTEK Testing Technology Co., Ltd.( ShenZhen Lab.). 1/F, Building E, Fenda Science Park, Sanwei Community,Xixiang Street Bao’an District, Shenzhen 518126 P.R. China) Please contact me if you have any question. Sincerely, (Signed) Name / Title: DongMei Liang/ Merchandiser Company: Dongguan Sanhe Sheng Technology Co., LTD Address: Room 601, Building 1, Changchun Industrial Park, No.37, Tianxi Road, Fenggang Town, Dongguan, China

Z:\电磁兼容部\RF项目组\RF项目\2024\7月\S24072307101001 东莞三合晟科技 蓝牙按摩器 805D16 FCC ID RF\7. Others\Letter\FCC POA Letter.docx (Dongguan Sanhe Sheng Technology Co., LTD) Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Date: 9/12/2024 SUBJECT: FCC Application for FCC ID: 2BHYT-SHS805D16 To Whom It May Concern: We, the undersigned, hereby authorize Alex Li at Shenzhen NTEK Testing Technology Co., Ltd. on our behalf, to apply to the Federal Communications Commission on our equipment. Any and all acts carried out by Shenzhen NTEK Testing Technology Co., Ltd. on our behalf shall have the same effect as acts of our own. This is to advise that we are in full compliance with the Anti- Drug Abuse Act. We, the applicant, are not subject to a denial of federal benefits pursuant to Section 5301 of the Anti-Drug Act of 1988, 21 USC853a, and no party to the application is subject to a denial of federal benefits pursuant to that section. Regards, (signature) (printed name): DongMei Liang

Size Loc a Pro Mo FCC IC: : 20*20mm ation: oduct：Air-pre odel:SHS805D C ID: 2BHYT-S 32851-SHS80 essure eye m D16 SHS805D16 05D16 massager

FCC ID: 2BHYT-SHS805D16 Portable device According to §15.247(e)(i) and §1.1307(b)(1), systems operating under the provisions of this section shall be operated in a manner that ensures that the public is not exposed to radio frequency energy level in excess of the Commission’s guidelines. According to KDB447498 D01 General RF Exposure Guidance V06 The 1-g SAR 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)]ꞏ[√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 When the minimum test separation distance is < 5 mm, a distance of 5 mm is applied to determine SAR test exclusion. BT Modulation Channel Freq. (GHz) Conduct ed power (dBm) Conducte d power (mW) Tune-up power (dBm) Max tune-up power (dBm) Max tune-up power (mW) Distance (mm) SAR test exclusion GFSK 1.4832.00<50.618473.00YES 1.4332.00<50.623473.00YES 1.4832.00<50.628433.00YES π/4- DQPSK 1.5532.00<50.618473.00YES 1.4932.00<50.623473.00YES 1.5232.00<50.628433.00YES 8-DPSK 1.5221.58<50.491273.00YES 1.5221.58<50.495243.00YES 1.5221.58<50.499183.00YES Result calculation SAR Exclusion threshold 2.402 2.56 2.441 2.39 2.480 1.82 2.402 2.75 2.441 2.62 2.480 2.07 2.402 1.14 2.441 1.04 2.480 0.57 2±1 2±1 2±1 2±1 2±1 2±1 1±1 1±1 1±1 BLE: Modulation Channel Freq. (GHz) Conduct ed power (dBm) Conducte d power (mW) Tune-up power (dBm) Max tune-up power (dBm) Max tune-up power (mW) Distance (mm) SAR test exclusion BLE(1M) 21.58<50.491273.00YES 21.58<50.495143.00YES 21.58<50.499183.00YES Result calculation SAR Exclusion threshold 2.402 0.89 1.48 2.440 0.74 1.43 2.480 0.16 1.48 1±1 1±1 1±1 Conclusion: For the max result : 0.62843 ≤ 3.0 for 1g SAR, SAR is not required. Signature: Date: 2024-08-12 NAME AND TITLE (Please print or type): Alex li /Manager COMPANY (Please print or type): Shenzhen NTEK Testing Technology Co., Ltd./ 1/F, Building E, Fenda Science Park, Sanwei Community, Xixiang Street Bao’an District, Shenzhen P.R. China.

1、ANTsize: Manufacturer：ShenzhenYunkangElectronicsCo.,Ltd Model：YK_ANT Specifications：PCB_ANT 2、AntennaDescription AntennaTypePCBANT Antennapeakgain2.6dbi Frequencyrange2.402GHz~2.48GHz 3 、 Antennaradiationof3Dpolar 4、Antennaradiationof3Dpolar

Report No.: S24072307101001 Version.1.3 Page 1 of 95 RADIO TEST REPORT FCC ID: 2BHYT-SHS805D16 Product: Air-pressure eye massager Trade Mark: N/A Model No.: SHS805D16 Family Model: SHS805D01-SHS805D20 Report No.: S24072307101001 Issue Date: Aug. 12, 2024 Prepared for Dongguan Sanhe Sheng Technology Co., LTD Room 601, Building 1, Changchun Industrial Park, No.37, Tianxi Road, Fenggang Town, Dongguan, China Prepared by Shenzhen NTEK Testing Technology Co., Ltd. 1/F, Building E, Fenda Science Park Sanwei, Xixiang, Bao'an District, Shenzhen, Guangdong, China Tel. 400-800-6106, 0755-2320 0050, 0755-2320 0090 Website: http://www.ntek.org.cn Report No.: S24072307101001 Version.1.3 Page 2 of 95 TABLE OF CONTENTS 1 TEST RESULT CERTIFICATION ...................................................................................................................... 3 2 SUMMARY OF TEST RESULTS ......................................................................................................................... 4 3 FACILITIES AND ACCREDITATIONS ............................................................................................................. 5 3.1 FACILITIES..................................................................................................................................................... 5 3.2 LABORATORY ACCREDITATIONS AND LISTINGS ................................................................................. 5 3.3 MEASUREMENT UNCERTAINTY ............................................................................................................... 5 4 GENERAL DESCRIPTION OF EUT .................................................................................................................. 6 5 DESCRIPTION OF TEST MODES ..................................................................................................................... 8 6 SETUP OF EQUIPMENT UNDER TEST ........................................................................................................... 9 6.1 BLOCK DIAGRAM CONFIGURATION OF TEST SYSTEM ....................................................................... 9 6.2 SUPPORT EQUIPMENT ............................................................................................................................... 10 6.3 EQUIPMENTS LIST FOR ALL TEST ITEMS .............................................................................................. 11 7 TEST REQUIREMENTS .................................................................................................................................... 13 7.1 CONDUCTED EMISSIONS TEST ............................................................................................................... 13 7.2 RADIATED SPURIOUS EMISSION ............................................................................................................ 16 7.3 NUMBER OF HOPPING CHANNEL ........................................................................................................... 25 7.4 HOPPING CHANNEL SEPARATION MEASUREMENT ........................................................................... 26 7.5 AVERAGE TIME OF OCCUPANCY (DWELL TIME) ................................................................................ 27 7.6 20DB BANDWIDTH TEST .......................................................................................................................... 29 7.7 PEAK OUTPUT POWER .............................................................................................................................. 30 7.8 CONDUCTED BAND EDGE MEASUREMENT......................................................................................... 31 7.9 SPURIOUS RF CONDUCTED EMISSION .................................................................................................. 32 7.10 ANTENNA APPLICATION .......................................................................................................................... 33 7.11 FREQUENCY HOPPING SYSTEM (FHSS) EQUIPMENT REQUIREMENTS ......................................... 34 8 TEST RESULTS ................................................................................................................................................... 35 8.1 DWELL TIME ............................................................................................................................................... 35 8.2 MAXIMUM CONDUCTED OUTPUT POWER ........................................................................................... 45 8.3 -20DB BANDWIDTH ................................................................................................................................... 51 8.4 OCCUPIED CHANNEL BANDWIDTH ....................................................................................................... 57 8.5 CARRIER FREQUENCIES SEPARATION .................................................................................................. 63 8.6 NUMBER OF HOPPING CHANNEL ........................................................................................................... 69 8.7 BAND EDGE ................................................................................................................................................. 72 8.8 BAND EDGE(HOPPING) ............................................................................................................................. 79 8.9 CONDUCTED RF SPURIOUS EMISSION .................................................................................................. 86 Report No.: S24072307101001 Version.1.3 Page 3 of 95 1 TEST RESULT CERTIFICATION Applicant’s name ........................ : Dongguan Sanhe Sheng Technology Co., LTD Address ....................................... : Room 601, Building 1, Changchun Industrial Park, No.37, Tianxi Road, Fenggang Town, Dongguan, China Manufacturer's Name ................. : Dongguan Sanhe Sheng Technology Co., LTD Address ...................…

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