YMX-NSGBCPUMPMassage Mattress / Air Pump

NaturesSleep/ControlBoxInstructionmanual Functiondescription: Controlthemaincontrolboxthroughtheremotecontrolto maketheairpumpworkandinflatetheairbaginsidethemattress. Whenapersonliesonthemattress,theextrusionoftheairbagcan achieveamassageeffect. Descriptionofaccessories: Serial number NameShape 1Mattress 2Detachableplug-in typeairtubejoint 3Maincontrolbox/air pumpbox 4Remotecontrol 5USBcable 6Poweradapters Installationinstructions: 1.Mattress ① Pass ② Detachableplug-intypeairtubejointand ③ Maincontrolbox/airpumpboxforconnection 2 ③ Maincontrolbox/airpumpboxthroughpoweradapter ⑥ to supplypower. 3.Whentheremoteisoutofpower,itcanbeusedthrough ③ Main controlbox/airpumpbox,use ⑤ USBcabletocharge ④ theremote controls Productinformation(specificationparameters): ProductName:MassageMattress/AirPump Input:29VDC2.0A Note: 1.Thisdevicecomplieswithpart15oftheFCCRules.Operationis subjecttothefol_x0002_lowingtwoconditions: (1)Thisdevicemaynotcauseharmfulinterference,and (2)thisdevicemustacceptanyinterferencere_x0002_ceived, includinginterferencethatmaycauseundesiredoperation. 2.Non-professional,donotdisassembleorrepairthedevice FCC Statement: This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. This equipment has been tested and found to comply with the limits for aClass B digital device, pursuant to part 15 ofthe FCCRules. Theselimits aredesigned to provide reasonable protection against harmful interference in a residential installation. This equipmentgenerates,usesandcanradiateradiofrequencyenergyand,ifnotinst alled andused inaccordance withthe instructions,may causeharmfulinterferencetoradio communications.However,there isno guaranteethatinterferencewill notoccur ina particularinstallation.Ifthisequipmentdoescauseharmfulinterferencetoradioo r television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: —Reorient or relocate the receiving antenna. —Increase the separation between the equipment and receiver. —Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. —Consult the dealer or an experienced radio/TV technician for help. Caution: Any changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. Thisequipment complies withFCC radiation exposure limits setforth for an uncontrolled environment. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter.

XIAMEN COMFORT SCIENCE & TECHNOLOGY GROUP CO., LTD 07.17.2023 Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: Attestation Statements Part 2.911(d)(5)(i) request for YMX‐NSGBCPUMP [XIAMEN COMFORT SCIENCE & TECHNOLOGY GROUP 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, (Applicant signature) (Applicant printed name) Cui Pengfei XIAMEN COMFORT SCIENCE & TECHNOLOGY GROUP CO., LTD 07.17.2023 Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: Attestation Statements Part 2.911(d)(5)(ii) request for YMX‐NSGBCPUMP [XIAMEN COMFORT SCIENCE & TECHNOLOGY GROUP 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 an entity producing “covered” equipment. Sincerely, (Applicant signature) (Applicant printed name) Cui Pengfei

Xiamen Comfort Science & Technology Group Co., Ltd 168#, Qianpu Road, Siming Zone, Xiamen Fujian Date: 2023-07-05 FEDERAL COMMUNICATIONS COMMISSION AUTHORIZATION AND EVALUATION DIVISION 7435 OAKLAND MILLS ROAD COLUMBIA, MD 21046 Ref:Attestation Statements Part 2.911(d) (7) Filing FCC ID: YMX-NSGBCPUMP Xiamen Comfort Science & Technology Group Co.,Ltd certifies that, as of the date of the filing of the application, Cozzia USA LLC is our designated U.S. agent for service of process for the above referenced FCC ID. Xiamen Comfort Science & Technology Group Co.,Ltd accepts to maintain an agent for no less than one year after the grantee has terminated all marketing and importation or the conclusion of any Commission-related proceeding involving the equipment. Cozzia USA LLCaccepts, as of the date of the filing of the application, the obligation of the designated U.S. agent for service of process for the above referenced FCC ID. Designated U.S. Agent Information: Name: Cozzia USA LLC FRN: 0025490376 Address:861 S. Oak Park Road，Covina, CA 91724 Contact Person:Jimmy Lo Tel.:877-977-0656 Email:[email protected] Sincerely, Signed on behalf ofXiamen Comfort Science & Technology Group Co.,Ltd Signed on behalf ofCozzia USA LLC Name:XuzibingName:Jimmy Lo Title:Quality manager Title: General Manager Date: 2023-07-05Date: 2023-07-05

XIAMEN COMFORT SCIENCE & TECHNOLOGY GROUP CO., LTD Agent Authorization Letter 2023-07-17 Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 USA RE: LETTER OF AGENT AUTHORIZATION To Whom It May Concern: We, the undersigned, hereby authorize Shenzhen Most Technology Service Co., Ltd. to act on our behalf in all matters relating to application for equipment authorization, including the signing of all documents relating to these matters. We also hereby certify that no party to the application authorized hereunder is subject to the denial of benefits, including FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C.853(a). This agreement expires one year from the current date. Sincerely, Name: Cui Pengfei Position: Safety Engineer Company Name: XIAMEN COMFORT SCIENCE & TECHNOLOGY GROUP CO., LTD Address: (5/F) NO.168, QIANPU ROAD, SIMING DISTRICT, XIAMEN, China Tel / Fax +86-592-7266925/+86-592-5532788 E-Mail: [email protected]

XIAMEN COMFORT SCIENCE & TECHNOLOGY GROUP CO., LTD Long Term Confidentiality Request Letter 2023-07-17 Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 USA RE: CONFIDENTIALITY REQUEST FOR (FCC ID: YMX-NSGBCPUMP) To Whom It May Concern: This letter serves as an official request for confidentiality under sections 0.457 and 0.459 of CFR 47. We have requested that the - e.g. Block diagram - e.g. SCH - e.g. Operational Description required to be submitted with this application be permanently withheld from public review. The above documents are company proprietary information that could never get into the possession of your competition. Please contact me if there is any information you may need. Sincerely, Name: Cui Pengfei Position: Safety Engineer Company Name: XIAMEN COMFORT SCIENCE & TECHNOLOGY GROUP CO., LTD Address: (5/F) NO.168, QIANPU ROAD, SIMING DISTRICT, XIAMEN, China Tel / Fax +86-592-7266925/+86-592-5532788 E-Mail: [email protected]

Model No.: NSGBCPUMP FRONT VIEW OF SAMPLE BACK VIEW OF SAMPLE Model No.: NSGBCPUMP LEFT VIEW OF SAMPLE RIGHT VIEW OF SAMPLE Model No.: NSGBCPUMP TOP VIEW OF SAMPLE BOTTOM VIEW OF SAMPLE Model No.: NSGBCPUMP

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气泵盒警示语贴标 尺寸:90X45mm 材质：消银龙 Product Name: Massage Mattress / Air Pump Class 2 Power Unit Input: 29 VDC 2.0A Lot Number: 2337 FCC ID:YMX-NSGBCPUMP Air Pump Bluetooth Number: NSGB2307000001 Made in China This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Lot Number: 格式:年周，随订单变更，每单内容由业务提供 Control Box Bluetooth Number: 格式：NSGB+年周（2307）+序列号6位 6mm

Model No.: NSGBCPUMP Page 1 of 3 INTERNAL PHOTO OF SAMPLE INTERNAL PHOTO OF SAMPLE PCB Model No.: NSGBCPUMP Page 2 of 3 INTERNAL PHOTO OF SAMPLE PCB INTERNAL PHOTO OF SAMPLE PCB BT Antenna Model No.: NSGBCPUMP Page 3 of 3 INTERNAL PHOTO OF SAMPLE PCB

Shenzhen Most Technology Service Co., Ltd. No.5, 2nd Langshan Road, North District, Hi-tech Industrial Park, Nanshan, Shenzhen, Guangdong, China. RF Exposure Evaluation Report Report Reference No. ..................... : FCC ID.. ........................................... : MTEB23060297-H YMX-NSGBCPUMP Compiled by ( position+printed name+signature) .. : File administrators Alisa Luo Supervised by ( position+printed name+signature) .. : Test Engineer Sunny Deng Approved by ( position+printed name+signature) .. : Manager Yvette Zhou Date of issue ..................................... : Jun.30,2023 Representative Laboratory Name .: Shenzhen Most Technology Service Co., Ltd. Address ............................................ : No.5, 2nd Langshan Road, North District, Hi-tech Industrial Park, Nanshan, Shenzhen, Guangdong, China. Applicant’s name ............................ : Xiamen Comfort Science & Technology Group Co.,Ltd Address ............................................ : 168#, Qianpu Road,Siming Zone, Xiamen Fujian Test specification/ Standard ..........: 47 CFR Part 1.1307 47 CFR Part 2.1093 TRF Originator .................................. : Shenzhen Most Technology Service Co., Ltd. Shenzhen Most Technology Service Co., Ltd. All rights reserved. This publication may be reproduced in whole or in part for non-commercial purposes as long as the Shenzhen Most Technology Service Co., Ltd. is acknowledged as copyright owner and source of the material. Shenzhen Most Technology Service Co., Ltd. takes no responsibility for and will not assume liability for damages resulting from the reader's interpretation of the reproduced material due to its placement and context. Test item description .....................: Massage Mattress / Air Pump Trade Mark ....................................... : N/A Model/Type reference....................... : NSGBCPUMP Listed Models .................................. : N/A Modulation Type ............................... : GFSK Operation Frequency ........................ : From 2402MHz to 2480MHz Hardware Version .............................. V1.1 Software Version ............................... V1.0 Rating ............................................... : DC 29V(by Adapter) Result................................................ : PASS Report No.: MTEB23060297-H Page 2 of 5 T E S T R E P O R T Equipment under Test : Massage Mattress / Air Pump Model /Type : NSGBCPUMP Listed Models N/A Remark N/A Applicant : Xiamen Comfort Science & Technology Group Co.,Ltd Address : 168#, Qianpu Road,Siming Zone, Xiamen Fujian Manufacturer : Xiamen Comfort Science & Technology Group Co.,Ltd Address : 168#, Qianpu Road,Siming Zone, Xiamen Fujian Test Result: PASS The test report merely corresponds to the test sample. It is not permitted to copy extracts of these test result without the written permission of the test laboratory. Report No.: MTEB23060297-H Page 3 of 5 1. R e v i s i o n H i s t o r y Revision Issue Date Revisions Revised By 00 2023.06.30 Initial Issue Alisa Luo Report No.: MTEB23060297-H Page 4 of 5 2. S A R E v a l u a t i o n 2.1 RF Exposure Compliance Requirement 2.1.1 Standard Requirement According to KDB447498D01 General RF Exposure Guidance v06 4.3.1. Standalone SAR test exclusion considerations 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 Exclusion Threshold condition, listed below, is satisfied. 2.1.2 Limits 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 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 Report No.: MTEB23060297-H Page 5 of 5 2.1.3 EUT RF Exposure Measurement Data BLE GFSK Test channel Peak Output Power (dBm) Tune up tolerance (dBm) Maximum tune-up Power (dBm) Lowest(2402MHz) 5.409 5.409±1 6.409 Middle(2440MHz) 6.456 6.456±1 7.456 Highest(2480MHz) 5.570 5.570±1 6.57 Worst case: GFSK Channel Maximum Peak Conducted Output Power (dBm) Maximum tune-up Power Calculated value Exclusion threshold SAR Test Exclusion (dBm) (mW) Highest(2440MHz) 6.456 7.456 5.57 1.74 3.0 Yes .......................THE END OF REPORT.........................

Antenna specification Wi-linktech www.wi-linktech.com 24/03/20211 1..overview This antenna specification describes the RF performance of the onboard antenna of WLT8016 module, ensuring that when connected to a 50 ohm source, the VSWR in the ISM band of 2.4 GHz ISM less than 3, the gain diagrams of the antenna in different directions, and the antenna efficiency and gain values in different frequency bands. 图1-1：WLT8016模块 2.Returnloss、VSWR Return lossVSWR Wi- linktech www .wi -linktech.com 24/03/20212 3. Direction and gain diagram Etheta Wi-linktech www.wi-linktech.com 24/03/20214 gain：-4.2dBi gain：-2.4dBi gain：-2.9dBi Ephi Wi- linktech www .wi -linktech.com 24/03/20214 4. Antenna gain table Frequency/ MHzEfficiency/ dBEfficiency/ %Gain/dBi 2400-7.9715.96-4.01 2405-7.7916.63-3.89 2410-7.6817.06-4 2415-7.5817.46-3.44 2420-7.5617.54-3.73 2425-7.4318.07-3.39 2430-7.2318.92-3.15 2435-7.3418.45-3.58 2440-7.2718.75-2.66 2445-7.0619.68-2.82 2450-7.1619.23-2.89 2455-7.1119.45-2.46 2460-7.1819.14-3.09 2465-7.318.62-2.67 2470-7.1119.45-2.73 2475-7.3918.24-3.27 2480-7.5617.54-2.75 2485-7.4517.99-2.98 2490-7.6917.02-3.44 2495-7.7916.63-3.4 2500-7.916.22-3.68

Shenzhen Most Technology Service Co., Ltd. No.5, 2nd Langshan Road, North District, Hi-tech Industrial Park, Nanshan, Shenzhen, Guangdong, China. TEST REPORT FCC Rules Part 15.247 Report Reference No. ................. : FCC ID.. ...................................... : MTEB23060297-R YMX-NSGBCPUMP Compiled by ( position+printed name+signature): File administrators Alisa Luo Supervised by ( position+printed name+signature): Test Engineer Sunny Deng Approved by ( position+printed name+signature): Manager Yvette Zhou Date of issue................................. : Jun.30,2023 Representative Laboratory Name ..................................................... : Shenzhen Most Technology Service Co., Ltd. Address ........................................ : No.5, 2nd Langshan Road, North District, Hi-tech Industrial Park, Nanshan, Shenzhen, Guangdong, China. Applicant’s name ..................... : Xiamen Comfort Science & Technology Group Co.,Ltd Address ........................................ : 168#, Qianpu Road,Siming Zone, Xiamen Fujian Test specification/ Standard ....... : FCC Rules Part 15.247 TRF Originator .............................. : Shenzhen Most Technology Service Co., Ltd. Shenzhen Most Technology Service Co., Ltd. All rights reserved. This publication may be reproduced in whole or in part for non-commercial purposes as long as the Shenzhen Most Technology Service Co., Ltd. is acknowledged as copyright owner and source of the material. Shenzhen Most Technology Service Co., Ltd. takes no responsibility for and will not assume liability for damages resulting from the reader's interpretation of the reproduced material due to its placement and context. Test item description .................. : Massage Mattress / Air Pump Trade Mark ...........................: N/A Manufacturer .................................: Xiamen Comfort Science & Technology Group Co.,Ltd Model/Type reference ....................: NSGBCPUMP Listed Models ...............................: N/A Modulation Type ............................: GFSK Operation Frequency .....................: From 2402MHz to 2480MHz Hardware Version ........................... V1.1 Software Version ............................ V1.0 Rating ............................................: DC 29V(by Adapter) Result ............................................: PASS Report No.: MTEB23060297-R Page 2 of 36 T E S T R E P O R T Equipment under Test : Massage Mattress / Air Pump Model /Type : NSGBCPUMP Listed Models N/A Remark N/A Applicant : Xiamen Comfort Science & Technology Group Co.,Ltd Address : 168#, Qianpu Road,Siming Zone, Xiamen Fujian Manufacturer : Xiamen Comfort Science & Technology Group Co.,Ltd Address : 168#, Qianpu Road,Siming Zone, Xiamen Fujian Test Result: PASS The test report merely corresponds to the test sample. It is not permitted to copy extracts of these test result without the written permission of the test laboratory. Report No.: MTEB23060297-R Page 3 of 36 Contents 1. REVISION HISTORY ................................................................ 4 2. TEST STANDARDS .................................................................. 5 3. SUMMARY ............................................................................. 6 3.1. General Remarks 6 3.2. Product Description 6 3.3. Equipment Under Test 6 3.4. Short description of the Equipment under Test (EUT) 6 3.5. EUT operation mode 7 3.6. Block Diagram of Test Setup 7 3.7. Test Item (Equipment Under Test) Description* 7 3.8. Auxiliary Equipment (AE) Description 7 3.9. Antenna Information* 8 3.10. EUT configuration 8 3.11. Modifications 8 4. TEST ENVIRONMENT ............................................................... 9 4.1. Address of the test laboratory 9 4.2. Environmental conditions 9 4.3. Test Description 10 4.4. Statement of the measurement uncertainty 10 4.5. Equipments Used during the Test 11 5. TEST CONDITIONS AND RESULTS ............................................ 12 5.1. AC Power Conducted Emission 12 5.2. Radiated Emission 15 5.3. Maximum Peak Output Power 22 5.4. Power Spectral Density 23 5.5. 6dB Bandwidth and 99% Bandwidth 24 5.6. Band Edge Compliance of RF Emission 25 5.7. Spurious RF Conducted Emission 27 5.8. Antenna Requirement 28 6. TEST SETUP PHOTOS OF THE EUT .......................................... 29 7. EXTERNAL AND INTERNAL PHOTOS OF THE EUT ....................... 30 APPENDIX I.Conducted Peak Output Power 31 APPENDIX II.99% Bandwidth 32 APPENDIX III.6dB Bandwidth 33 APPENDIX IV.Conducted Out Of Band Emission 34 APPENDIX V.Power Spectral Density 36 Report No.: MTEB23060297-R Page 4 of 36 1. Revision History Revision Issue Date Revisions Revised By 00 2023.06.30 Initial Issue Alisa Luo Report No.: MTEB23060297-R Page 5 of 36 2. TEST STANDARDS The tests were performed according to following standards: The tests were performed according to following standards: FCC Rules Part 15.247: Frequency Hopping, Direct Spread Spectrum and Hybrid Systems that are in operation within the bands of 902-928 MHz, 2400-2483.5 MHz, and 5725-5850 MHz. ANSI C63.10:2013 : American National Standard for Testing Unlicensed Wireless Devices Report No.: MTEB23060297-R Page 6 of 36 3. SUMMARY 3.1. General Remarks Date of receipt of test sample : 2023.06.15 Testing commenced on : 2023.06.16 Testing concluded on : 2023.06.30 3.2. Product Description Product Name: Massage Mattress / Air Pump Model/Type reference: NSGBCPUMP Power Supply： DC 29V(by Adapter) Testing sample ID： MTYP01757 Bluetooth : Supported Type: BLE Modulation: GFSK Operation frequency: 2402MHz~2480MHz Channel number: 40 Channel separation: 2MHz Antenna type: PCB Antenna Antenna gain: -2.46dBi 3.3. Equipment Under Test Power supply system utilised Power supply voltage : ○ 230V / 50 Hz ○ 120V / 60Hz ○ 12 V DC ○ 24 V DC ● Other (specified in blank below) DC 29V(by Adapter) 3.4. Short description of the Equipment under Test (EUT) This is a Massage Mattress / Air Pump For more details, refer to the user’s…

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Model No.: NSGBCPUMP CE TEST SETUP RE TEST SETUP Model No.: NSGBCPUMP RE TEST SETUP