2AYDA-500BAroma Diffuser

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. Changes or modifications to this unit not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment. NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or 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. This device and its antenna(s) must not be co-located or operation in conjunction with any other antenna or transmitter. Radiation Exposure Statement The device has been evaluated to meet general RF exposure requirement. in portable exposure condition without restriction.

Difference description FCC ID: 2AYDA-500B Model: 500B, 60A, 60CF, 80A, 80CF, 100CF, 150CF, 200CF, 200F, 300F, 600AF, 600F, 3000B, 3000C, 8000A, 8000AF Product Name:Aroma Diffuser The Aroma Diffuser manufactured by Guangzhou Tang Mei Environmental Protection Technology Co., Ltd needs to apply for FCC certification. The applied models are as list above. They are the same except for the model name, even the principle of the circuit, the electrical structure and all key components related to safety and electromagnetic compatibility are the same. The difference does not affect the EMC or RF for FCC related rule parts. Company: Name: jianmei Wang Company: Guangzhou Tang Mei Environmental Protection Technology Co., Ltd Address: Room 202, No. 1 Dongheng 5th Road, Zhucun, Tianhe District, Guangzhou, Guangdong, China Phone: +86 020-82193809 Fax: E-Mail: [email protected]

CONFIDENTIALITY REQUEST for Certification Service in USA Federal Communication Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21046 Date: 12/14/2020 TO WHOM IT MAY CONCERN Pursuant to Paragraphs §0.457 and 0.459 of the Commission’s Rules (47 C.F.R.) and Section §552(b)(4) of the Freedom of Information Act, we requests confidentiality for the following products: FCC ID Model name 2AYDA-500B 500B, 60A, 60CF, 80A, 80CF, 100CF, 150CF, 200CF, 200F, 300F, 600AF, 600F, 3000B, 3000C, 8000A, 8000AF For the product stated above, we request that the following information be held confidential; Exhibits Long-Term Confidentiality Short-Term Confidentiality Short-Term Confidentiality Days External Photos Internal Photos Block Diagram Schematics Test Setup Photos User’s Manual Parts List Tune Up Operational Descriptions The long-term confidentiality exhibits contain our trade secrets and proprietary information that could be of benefit to our competitors. The short-term confidentiality on the basis of ensuring that business sensitive information remains confidential until the actual marketing of our new device. If you have any questions, please feel free to contact me at the address shown below. Sincerely, Signature jianmei Wang Certification Representative Guangzhou Tang Mei Environmental Protection Technology Co., Ltd

Guangzhou Tang Mei Environmental Protection Technology Co., Ltd Room 202, No. 1 Dongheng 5th Road, Zhucun, Tianhe District, Guangzhou, Guangdong, China Federal Communications Commission Authorization and Evaluation Division Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 12/14/2020 To whom it may concern: We, Guangzhou Tang Mei Environmental Protection Technology Co., Ltd, the undersigned, hereby authorize Eurofins Product Service GmbH to act on our behalf in all matters relating to applications for equipment authorization FCC ID: 2AYDA-500B including the signing of all documents related to these matters. Any and all acts carried out by Eurofins Product Service GmbH on our behalf shall have the same effect as acts of our own. We also hereby certify that no party to this application is subject to a denial of benefits, including FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. 862. Sincerely, Signature jianmei Wang Certification Representative Guangzhou Tang Mei Environmental Protection Technology Co., Ltd

Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AYDA-500B This reportshall not be reproduced except in full, without the written approval of Shenzhen Tongzhou Testing Co.,Ltd Page 1 of 3 EXTERIOR PHOTOGRAPHS OF EUT Fig.1 Fig.2 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AYDA-500B This reportshall not be reproduced except in full, without the written approval of Shenzhen Tongzhou Testing Co.,Ltd Page 2 of 3 Fig.3 Fig.4 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AYDA-500B This reportshall not be reproduced except in full, without the written approval of Shenzhen Tongzhou Testing Co.,Ltd Page 3 of 3 Fig.5 Fig.6

Label & Label Location Size: 40mm(L)*35mm(W) FCC ID: 2AYDA-500B

Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AYDA-500B This report shall not be reproduced except in full, without the written approval of Shenzhen Tongzhou Testing Co.,Ltd Page 1 of 4 INTERIOR PHOTOGRAPHS OF EUT Fig.1 Fig.2 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AYDA-500B This report shall not be reproduced except in full, without the written approval of Shenzhen Tongzhou Testing Co.,Ltd Page 2 of 4 Fig.3 Fig.4 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AYDA-500B This report shall not be reproduced except in full, without the written approval of Shenzhen Tongzhou Testing Co.,Ltd Page 3 of 4 Fig.5 Fig.6 Bluetooth Antenna Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AYDA-500B This report shall not be reproduced except in full, without the written approval of Shenzhen Tongzhou Testing Co.,Ltd Page 4 of 4 Fig.7

Guangzhou Tang Mei Environmental Protection Technology Co., Ltd Room 202, No. 1 Dongheng 5th Road, Zhucun, Tianhe District, Guangzhou, Guangdong, China Declaration concerning Antenna Specification Federal Communication Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21046 Date: 12/14/2020 TO WHOM IT MAY CONCERN It is hereby declared that the product Model No.: 500B, 60A, 60CF, 80A, 80CF, 100CF, 150CF, 200CF, 200F, 300F, 600AF, 600F, 3000B, 3000C, 8000A, 8000AF FCC ID: 2AYDA-500B Fulfills the requirement in FCC test relating to the antenna type. The device specified above confirms to the FCC recommendations for internal antenna type(s) described below: Model No. of antenna: same with Model name Type of antenna: PCB Antenna Gain of the antenna (Max.): 0 dBi Frequency range: 2400MHz-2500MHz The antenna will be fixed to the radio module on PCB integral, and no other antennas not listed above should be used. Sincerely, Signature jianmei Wang Certification Representative Guangzhou Tang Mei Environmental Protection Technology Co., Ltd

Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AYDA-500B This report shall not be reproduced except in full, without the written approval of Shenzhen Tongzhou Testing Co.,Ltd Page 1 of 2 RADIO FREQUENCY EXPOSURE Limit According to section 4.3.1 of KDB 447498 D01 General RF Exposure Guidance v06, SAR evaluation is required if the separation distance between the user and/or bystander and the antenna and/or radiating element of the device is less than or equal to 20 cm, except when the device operates at or below the applicable output power level (adjusted for tune-up tolerance) for the specified separation distance defined in Appendix A. Appendix A SAR Test Exclusion Thresholds for 100 MHz – 6 GHz and ≤ 50 mm MHz 5 10 15 20 25 mm 150 39 77 116 155 194 SAR Test Exclusion Threshold (mW) 300 27 55 82 110 137 450 22 45 67 89 112 835 16 33 49 66 82 900 16 32 47 63 79 1500 12 24 37 49 61 1900 11 22 33 44 54 2450 10 19 29 38 48 3600 8 16 24 32 40 5200 7 13 20 26 33 5400 6 13 19 26 32 5800 6 12 19 25 31 MHz 30 35 40 45 50 mm 150 232 271 310 349 387 SAR Test Exclusion Threshold (mW) 300 164 192 219 246 274 450 134 157 179 201 224 835 98 115 131 148 164 900 95 111 126 142 158 1500 73 86 98 110 122 1900 65 76 87 98 109 2450 57 67 77 86 96 3600 47 55 63 71 79 5200 39 46 53 59 66 5400 39 45 52 58 65 5800 37 44 50 56 62 Note: Manufacturer declared that the maximum antenna gain is 0dBi (Max.). Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AYDA-500B This report shall not be reproduced except in full, without the written approval of Shenzhen Tongzhou Testing Co.,Ltd Page 2 of 2 Conducted Power Results Test Mode Channel Frequency (MHz) Measured Peak Output Power (dBm) GFSK(1Mbps) 00 2402 -3.16 19 2440 -1.63 39 2480 -0.52 Manufacturing tolerance GFSK (1Mbps Peak) Channel Channel 0 Channel 19 Channel 39 Target (dBm) -3.5 -2.0 -1.0 Tolerance ±(dB) 1.0 1.0 1.0 Results Test Mode Channel Frequency (MHz) Max. Tune Up Power (dBm, Peak) Max. Eirp including Tune Up (dBm, Peak) Max. Eirp including Tune Up (mW, Peak) Exemption Limit (mW) GFSK(1Mbps) 2402 -2.5 -2.5 0.56 10 2440 -1.0 -1.0 0.79 10 2480 0.0 0.0 1.00 10 The antenna gain of the EUT for BT is 0dBi (Max). the Maximum Eirp is used for Routine Evaluation Exemption according to section 4.3.1 of KDB 447498 D01. So, the SAR evaluation is not required.

Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AYDA-500B Report No.: TZ201101787-E Page 1 of 15 Appendix A RF Test Data for BT(BLE) (Conducted Measurement) Product Name: Aroma Diffuser Trade Mark: N/A Test Model: 500B FCC ID: 2AYDA-500B Environmental Conditions Temperature: 22.8C Relative Humidity: 60% ATM Pressure: 100.0 kPa Test Engineer: Nancy Li Supervised by: Hugo Chen NOTE N/A A.1. 6dB Bandwidth TestMode Antenna Channel DTS BW [MHz] FL[MHz] FH[MHz] Limit[MHz] Verdict BLE_1M Ant1 2402 0.688 2401.660 2402.348 0.5 PASS 2440 0.732 2439.620 2440.352 0.5 PASS 2480 0.700 2479.660 2480.360 0.5 PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AYDA-500B Report No.: TZ201101787-E Page 2 of 15 BLE_1M_Ant1_2402 BLE_1M_Ant1_2440 BLE_1M_Ant1_2480 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AYDA-500B Report No.: TZ201101787-E Page 3 of 15 A.2. Occupied Bandwidth Test Mode Test Channel Ant OBW[MHz] Limit[MHz] Verdict A.3. Maximum peak conducted output power TestMode Antenna Channel Result[dBm] Limit[dBm] Verdict BLE_1M Ant1 2402 -3.16 <=30 PASS 2440 -1.63 <=30 PASS 2480 -0.52 <=30 PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AYDA-500B Report No.: TZ201101787-E Page 4 of 15 BLE_1M_Ant1_2402 BLE_1M_Ant1_2440 BLE_1M_Ant1_2480 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AYDA-500B Report No.: TZ201101787-E Page 5 of 15 A.4. Maximum Peak power spectral density TestMode Antenna Channel Result[dBm/3-100kHz] Limit[dBm/3kHz] Verdict BLE_1M Ant1 2402 -12.88 <=8 PASS 2440 -11.44 <=8 PASS 2480 -10.28 <=8 PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AYDA-500B Report No.: TZ201101787-E Page 6 of 15 BLE_1M_Ant1_2402 BLE_1M_Ant1_2440 BLE_1M_Ant1_2480 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AYDA-500B Report No.: TZ201101787-E Page 7 of 15 A.5. Band-edge for RF Conducted Emissions TestMode Antenna ChName Channel RefLevel[dBm] Result[dBm] Limit[dBm] Verdict BLE_1M Ant1 Low 2402 -4.18 -50.69 <=-24.18 PASS High 2480 -1.17 -47.59 <=-21.17 PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AYDA-500B Report No.: TZ201101787-E Page 8 of 15 BLE_1M_Ant1_Low_2402 BLE_1M_Ant1_High_2480 ' Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AYDA-500B Report No.: TZ201101787-E Page 9 of 15 A.6. RF Conducted Spurious Emissions BLE_1M_Ant1_2402_0~Reference BLE_1M_Ant1_2402_30~1000 BLE_1M_Ant1_2402_1000~26500 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AYDA-500B Report No.: TZ201101787-E Page 10 of 15 BLE_1M_Ant1_2440_0~Reference BLE_1M_Ant1_2440_30~1000 BLE_1M_Ant1_2440_1000~26500 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AYDA-500B Report No.: TZ201101787-E Page 11 of 15 BLE_1M_Ant1_2480_0~Reference BLE_1M_Ant1_2480_30~1000 BLE_1M_Ant1_2480_1000~26500 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AYDA-500B Report No.: TZ201101787-E Page 12 of 15 A.7. Duty Cycle Test Mode Test Channel Ant Duty Cycle[%] Verdict BLE(1Mbps) 2440 Ant1 63.77 PASS BLE_1M_Ant1_2440 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AYDA-500B Report No.: TZ201101787-E Page 13 of 15 A.8. Restrict-band band-edge measurements TestMode Antenna ChName Channel Detector Freq. [MHz] Result [dBm] Limit [dBm] Verdict BLE_1M Ant1 Low 2402 AV 2310.000 -54.40 <=-41.20 PASS AV 2390.000 -53.87 <=-41.20 PASS Peak 2310.000 -47.57 <=-21.20 PASS Peak 2390.000 -46.78 <=-21.20 PASS High 2480 AV 2483.500 -51.61 <=-41.20 PASS AV 2500.000 -53.43 <=-41.20 PASS Peak 2483.500 -47.40 <=-21.20 PASS Peak 2500.000 -45.62 <=-21.20 PASS 1. The Antenna Gain is compensated in the graph with 2dBi and Antenna Gain which is Higher. 2. The limit in dBm for average detector is conversion from 54dBuV/m, according to 15.209(a). The limit in dBm for peak detector is 20dB above the limit of average detector in dBm . Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AYDA-500B Report No.: TZ201101787-E Page 14 of 15 BLE_1M_Ant1_Low_2402_AV BLE_1M_Ant1_Low_2402_Peak BLE_1M_Ant1_High_2480_AV Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AYDA-500B Report No.: TZ201101787-E Page 15 of 15 BLE_1M_Ant1_High_2480_Peak

Report No.: TZ201101787-E Page 1 of 35 FCC TEST REPORT Test report On Behalf of Guangzhou Tang Mei Environmental Protection Technology Co., Ltd. For Aroma Diffuser Model No.: 500B, 60A, 60CF, 80A, 80CF, 100CF, 150CF, 200CF, 200F, 300F, 600AF, 600F, 3000B, 3000C, 8000A, 8000AF FCC ID: 2AYDA-500B Prepared for : Guangzhou Tang Mei Environmental Protection Technology Co., Ltd. Room 202, No. 1 Dongheng 5th Road, Zhucun, Tianhe District, Guangzhou, Guangdong, China Prepared By : Shenzhen Tongzhou Testing Co.,Ltd 1th Floor, Building 1, Haomai High-tech Park, Huating Road 387, Dalang Street, Longhua, Shenzhen, China Date of Test: 2020/11/4~ 2020/11/16 Date of Report: 2020/11/17 Report Number: TZ201101787-E The test report apply only to the specific sample(s) tested under stated test conditions It is not permitted to copy extracts of these test result without the written permission of the test laboratory. Report No.: TZ201101787-E Page 2 of 35 TEST RESULT CERTIFICATION Applicant’s name ................. : Guangzhou Tang Mei Environmental Protection Technology Co., Ltd. Address .................................. : Room 202, No. 1 Dongheng 5th Road, Zhucun, Tianhe District, Guangzhou, Guangdong, China Manufacture's Name ............ : Guangzhou Tang Mei Environmental Protection Technology Co., Ltd. Address .................................. : Room 202, No. 1 Dongheng 5th Road, Zhucun, Tianhe District, Guangzhou, Guangdong, China Product description Trade Mark ............................. : N/A Product name ........................... : Aroma Diffuser Model and/or type reference .. : 500B, 60A, 60CF, 80A, 80CF, 100CF, 150CF, 200CF, 200F, 300F, 600AF, 600F, 3000B, 3000C, 8000A, 8000AF Standards ............................. : FCC Rules and Regulations Part 15 Subpart C Section 15.247 ANSI C63.10: 2013 This publication may be reproduced in whole or in part for non-commercial purposes as long as the Shenzhen Tongzhou Testing Co.,Ltd is acknowledged as copyright owner and source of the material. Shenzhen Tongzhou Testing 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. Date of Test ........................................... : Date (s) of performance of tests ............. : 2020/11/4~ 2020/11/16 Date of Issue .......................................... : 2020/11/17 Test Result .............................................. : Pass Testing Engineer : (Nancy Li) Technical Manager : (Hugo Chen) Authorized Signatory : (Andy Zhang) Report No.: TZ201101787-E Page 3 of 35 Revision History Revision Issue Date Revisions Revised By 000 2020/11/17 Initial Issue Andy Zhang Report No.: TZ201101787-E Page 4 of 35 TABLE OF CONTENTS 1. GENERAL INFORMATION ................................................................................................................................... 5 1.1. DESCRIPTION OF DEVICE (EUT) ........................................................................................................................ 5 1.2. HOST SYSTEM CONFIGURATION LIST AND DETAILS .......................................................................................... 5 1.3 EUT CONFIGURATION .......................................................................................................................................... 6 1.4. EXTERNAL I/O CABLE ......................................................................................................................................... 6 1.5. DESCRIPTION OF TEST FACILITY ........................................................................................................................ 6 1.6. STATEMENT OF THE MEASUREMENT UNCERTAINTY .......................................................................................... 7 1.7. MEASUREMENT UNCERTAINTY ........................................................................................................................... 7 1.8. DESCRIPTION OF TEST MODES .......................................................................................................................... 7 1.9. FREQUENCY OF CHANNELS ................................................................................................................................ 7 2. TEST METHODOLOGY ......................................................................................................................................... 8 2.1. EUT CONFIGURATION......................................................................................................................................... 8 2.2. EUT EXERCISE ................................................................................................................................................... 8 2.3. GENERAL TEST PROCEDURES ........................................................................................................................... 8 2.4. TEST SAMPLE ...................................................................................................................................................... 8 3. SYSTEM TEST CONFIGURATION ...................................................................................................................... 9 3.1. JUSTIFICATION..................................................................................................................................................... 9 3.2. EUT EXERCISE SOFTWARE ................................................................................................................................ 9 3.3. SPECIAL ACCESSORIES ...................................................................................................................................... 9 3.4. BLOCK DIAGRAM/SCHEMATICS........................................................................................................................... 9 3.5. EQUIPMENT MODIFICATIONS .................................…

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Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AYDA-500B TEST SETUP PHOTOS OF THE EUT Radiated Emission Below 1GHz Radiated Emission Above 1GHz Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AYDA-500B Conducted Emission