2A8V2U23Bluetooth neck fan

FCC Caution. 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. Any Changes or modifications 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. The device has been evaluated to meet general RF exposure requirement. The device can be used in portable exposure condition without restriction.

Long-Term Confidentiality Request Letter For Certification Service in the USA Federal Communication Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21048 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 request confidentiality for the documentation of the following products: FCC ID Model name 2A8V2U23 U-23 For the products listed above, we request permanent confidentiality for all applicable exhibits as there are: • the Operational Description • the Block Diagram • the Schematics The above listed exhibits contain trade secrets and proprietary information that could be of benefit to our competitors. If you have any questions, please feel free to contact us at the address shown below. Sincerely, Signature Date2023.04.20 Printed Name of Signee:Mars zhang Company: Shenzhen Weiteshijia Technology Co., Ltd. Address: 101-503, building D, Duoli industrial plant, No.9 Jinlong 1st Road, Baolong community, Baolong street, Longgang District, Shenzhen China Phone:13058083305 Fax:N/A Email:[email protected]

Page 1 of 5 Report No.: LGT23D036 Appendix - External Photographs of EUT Constructional Details FCC ID: 2A8V2U23 Model: U-23 Photo 1 Photo 2 Page 2 of 5 Report No.: LGT23D036 Photo 3 Photo 4 Page 3 of 5 Report No.: LGT23D036 Photo 5 Photo 6 Page 4 of 5 Report No.: LGT23D036 Photo 7 Photo 8 Page 5 of 5 Report No.: LGT23D036 Photo 9

Label Bluetooth neck fan Model:U-23 FCC ID:2A8V2U23

Page 1 of 8 Report No.: LGT23D036 Appendix - Internal Photographs of EUT Constructional Details FCC ID: 2A8V2U23 Model: U-23 Photo 1 Photo 2 Page 2 of 8 Report No.: LGT23D036 Photo 3 Photo 4 BT ANT Page 3 of 8 Report No.: LGT23D036 Photo 5 Photo 6 Page 4 of 8 Report No.: LGT23D036 Photo 7 Photo 8 Page 5 of 8 Report No.: LGT23D036 Photo 9 Photo 10 Page 6 of 8 Report No.: LGT23D036 Photo 11 Photo 12 Page 7 of 8 Report No.: LGT23D036 Photo 13 Photo 14 Page 8 of 8 Report No.: LGT23D036 Photo 15

FCC ID:2A8V2U23 RF EXPOSURE EVALUATION METHOD SAR Test Exclusion Thresholds for 100 MHz – 6 GHz and ≤ 50 mm Approximate SAR Test Exclusion Power Thresholds at Selected Frequencies and Test Separation Distances are illustrated in the following Table. 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 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 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. FCC ID:2A8V2U23 BT The Worst Case Mode 2402-2480MHz Detector PEAK GFSK 4±1dBm π/4-DQPSK 5±1dBm 8DPSK 5±1dBm Remark:The worst case gain of the antenna is -0.58dBi. -0.58dBi logarithmic terms convert to numeric result is nearly 0.875 2.480 4.85 5 3.16227766 0.9960 3 2.480 5.53 6 3.981071706 1.2539 3 2.402 5.84 6 3.981071706 1.2340 3 Limit Maximum Peak Conducted Output Power (dBm) frequency (GHz) Tune up Power (dBm) Tune up Power (mW) Result Threshold at which no SAR required is 1.2539≤ 3.0 for 1-g SAR, Separation distance is 5mm.

Inverted F Antenna Specification Summary ITEM ANT SPEC Model Name U-23 Horizontal Vertical 2400MHz 2400MHz2500MHz2400MHz2400MHz 2500MHz Center Frequency -1.26 -0.76 -0.58 -5.25 -2.46 -1.86 MAX. Gain -0.58dB Polarization Horizontal and Vertical Azimuth Beam Pattern Omni-directional Impedance 50 Ohm Antenna Length 38.20mm Manufacture ZHUHAI JIELI TECHNOLOGY CO.,LTD Antenna Photo & Length (mm) Address Building 9, No. 107, Shihua West Road, Jida, Zhuhai City, China Horizontal: 2400 MHz 2450 MHz 2500 MHz Power (dBm) Max: 0 Min: -40 Scale: 5/div Gain(dB) Frequency (MHz) Max Min Avg 2400 -1.26174 -30.0801 -7.18716 2450 -0.765802 -36.5604 -7.48023 2500 -0.585582 -22.0315 -6.59127 Vertical: 2400 MHz 2450 MHz 2500 MHz Power (dBm) Max: 0 Min: -30 Scale: 5/div Gain(dB) Frequency (MHz) Max Min Avg 2400 -5.2537 -22.1424 -12.4294 2450 -2.4652 -24.5837 -10.4702 2500 -1.86120 -29.5214 -9.20432 ANT Test Labs：Attestation of Global Compliance Co., Ltd.

RF TEST REPORT Product Name: Bluetooth neck fan Model Name: U-23 FCC ID: 2A8V2U23 Issued For : Shenzhen Weiteshijia Technology Co., Ltd. 101-503, building D, Duoli industrial plant, No.9 Jinlong 1st Road, Baolong community, Baolong street, Longgang District, Shenzhen China Issued By : Shenzhen LGT Test Service Co., Ltd. Room 205, Building 13, Zone B, Chen Hsong Industrial Park, No.177 Renmin West Road, Jinsha Community, Kengzi Street, Pingshan New District, Shenzhen, China Report Number: LGT23D036RF01 Sample Received Date: Apr. 11, 2023 Date of Tested: Apr. 11, 2023 – Apr. 19, 2023 Date of Issue: Apr. 19, 2023 Report No.: LGT23D036RF01 Page 2 of 82 TEST REPORT CERTIFICATION Applicant: Shenzhen Weiteshijia Technology Co., Ltd. Address: 101-503, building D, Duoli industrial plant, No.9 Jinlong 1st Road, Baolong community, Baolong street, Longgang District, Shenzhen China Manufacturer: Shenzhen Weiteshijia Technology Co., Ltd. Address: 101-503, building D, Duoli industrial plant, No.9 Jinlong 1st Road, Baolong community, Baolong street, Longgang District, Shenzhen China Factory: Shenzhen Weiteshijia Technology Co., Ltd. Address: 101-503, building D, Duoli industrial plant, No.9 Jinlong 1st Road, Baolong community, Baolong street, Longgang District, Shenzhen China Product Name: Bluetooth neck fan Trademark: N/A Model Name: U-23 Sample Status: Normal APPLICABLE STANDARDS STANDARD TEST RESULTS FCC Part 15.247, Subpart C ANSI C63.10-2013 PASS Prepared by: Approved by: Zane Shan Vita Li Engineer Technical Director Report No.: LGT23D036RF01 Page 3 of 82 Table of Contents Page 1. SUMMARY OF TEST RESULTS 6 1.1 TEST FACTORY 7 1.2 MEASUREMENT UNCERTAINTY 7 2. GENERAL INFORMATION 8 2.1 GENERAL DESCRIPTION OF THE EUT 8 2.2 DESCRIPTION OF THE TEST MODES 10 2.3 FREQUENCY HOPPING SYSTEM REQUIREMENTS 10 2.4 TABLE OF PARAMETERS OF TEST SOFTWARE SETTING 12 2.5 DESCRIPTION OF NECESSARY ACCESSORIES AND SUPPORT UNITS 12 2.6 EQUIPMENTS LIST 13 3. EMC EMISSION TEST 14 3.1 CONDUCTED EMISSION MEASUREMENT 14 3.2 RADIATED EMISSION MEASUREMENT 18 4. CONDUCTED SPURIOUS & BAND EDGE EMISSION 29 4.1 LIMIT 29 4.2 TEST PROCEDURE 29 4.3 TEST SETUP 30 4.4 EUT OPERATION CONDITIONS 30 4.5 TEST RESULTS 30 5. NUMBER OF HOPPING CHANNEL 31 5.1 LIMIT 31 5.2 TEST PROCEDURE 31 5.3 TEST SETUP 31 5.4 EUT OPERATION CONDITIONS 31 5.5 TEST RESULTS 31 6. AVERAGE TIME OF OCCUPANCY 32 6.1 LIMIT 32 6.2 TEST PROCEDURE 32 6.3 TEST SETUP 32 6.4 EUT OPERATION CONDITIONS 32 6.5 TEST RESULTS 32 7. HOPPING CHANNEL SEPARATION MEASUREMEN 33 7.1 LIMIT 33 7.2 TEST PROCEDURE 33 Report No.: LGT23D036RF01 Page 4 of 82 Table of Contents Page 7.3 TEST SETUP 33 7.4 EUT OPERATION CONDITIONS 33 7.5 TEST RESULTS 33 8. BANDWIDTH TEST 34 8.1 LIMIT 34 8.2 TEST PROCEDURE 34 8.3 TEST SETUP 34 8.4 EUT OPERATION CONDITIONS 34 8.5 TEST RESULTS 34 9. OUTPUT POWER TEST 35 9.1 LIMIT 35 9.2 TEST PROCEDURE 35 9.3 TEST SETUP 35 9.4 EUT OPERATION CONDITIONS 35 9.5 TEST RESULTS 35 10. ANTENNA REQUIREMENT 36 10.1 STANDARD REQUIREMENT 36 10.2 EUT ANTENNA 36 APPENDIX I - TEST RESULTS 37 DWELL TIME 37 DUTY CYCLE 44 MAXIMUM AVERAGE CONDUCTED OUTPUT POWER 48 MAXIMUM PEAK CONDUCTED OUTPUT POWER 49 -20DB BANDWIDTH 50 OCCUPIED CHANNEL BANDWIDTH 54 CARRIER FREQUENCIES SEPARATION 58 BAND EDGE 62 BAND EDGE(HOPPING) 67 CONDUCTED RF SPURIOUS EMISSION 72 NUMBER OF HOPPING CHANNEL 79 APPENDIX II - PHOTOS OF TEST SETUP 81 Report No.: LGT23D036RF01 Page 5 of 82 Revision History Rev. Issue Date Contents 00 Apr. 19, 2023 Initial Issue Report No.: LGT23D036RF01 Page 6 of 82 1. SUMMARY OF TEST RESULTS Test procedures according to the technical standards: KDB 558074 D01 15.247 Meas Guidance v05r02. FCC Part 15.247, Subpart C Standard Section Test Item Judgment Remark 15.207 Conducted Emission PASS -- 15.247(a)(1) Hopping Channel Separation PASS -- 15.247(a)(1)&(b)(1) Output Power PASS -- 15.209 Radiated Spurious Emission PASS -- 15.247(d) Conducted Spurious & Band Edge Emission PASS -- 15.247(a)(1)(iii) Number of Hopping Frequency PASS -- 15.247(a)(1)(iii) Dwell Time PASS -- 15.247(a)(1) Bandwidth PASS -- 15.205 Restricted bands of operation PASS -- Part 15.247(d)/part 15.209(a) Band Edge Emission PASS -- 15.203 Antenna Requirement PASS -- NOTE: (1) ‘N/A’ denotes test is not applicable in this Test Report. (2) All tests are according to ANSI C63.10-2013. Report No.: LGT23D036RF01 Page 7 of 82 1.1 TEST FACTORY Company Name: Shenzhen LGT Test Service Co., Ltd. Address: Room 205, Building 13, Zone B, Chen Hsong Industrial Park, No.177 Renmin West Road, Jinsha Community, Kengzi Street, Pingshan New District, Shenzhen, China Accreditation Certificate A2LA Certificate No.: 6727.01 FCC Registration No.: 746540 CAB ID: CN0136 1.2 MEASUREMENT UNCERTAINTY The reported uncertainty of measurement y ± U, where expended uncertainty U is based on a standard uncertainty multiplied by a coverage factor of k=2, providing a level of confidence of approximately 95 %. No. Item Uncertainty 1 RF output power, conducted ±0.68dB 2 Unwanted Emissions, conducted ±2.988dB 3 All emissions, radiated 9K-30MHz ±2.84dB 4 All emissions, radiated 30M-1GHz ±4.39dB 5 All emissions, radiated 1G-6GHz ±5.10dB 6 All emissions, radiated>6G ±5.48dB 7 Conducted Emission (9KHz-150KHz) ±2.79dB 8 Conducted Emission (150KHz-30MHz) ±2.80dB Report No.: LGT23D036RF01 Page 8 of 82 2. GENERAL INFORMATION 2.1 GENERAL DESCRIPTION OF THE EUT Product Name: Andover One Record Player Trademark: N/A Model Name: U- 23 Series Model: N/A Model Difference: N/A Channel List: Please refer to the Note 2. Bluetooth: Frequency:2402 – 2480 MHz Modulation: GFSK, π/4-DQPSK,8DPSK Antenna Type: Please refer to the Note 3. Rating: Input: DC 5V/2A Battery: Capacity: 2000mAh Rated Voltage: 3.7V Hardware version: N/A Software version: N/A Connecting I/O Port(s): Please refer to the Note 1. Note: 1. For a more detailed features description, please refer to the manufacturer’s specifications or the User Manual. Report No.: LGT23D036RF01 Page 9 of 82 2. Channel List Channel Frequen…

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Page 1 of 2 Report No.: LGT23D036 Appendix - Test Setup photos FCC ID: 2A8V2U23 Model: U-23 Radiated Spurious Emission Test Setup Photo - Below 1GHz Radiated Spurious Emission Test Setup Photo - Above 1GHz Page 2 of 2 Report No.: LGT23D036 Conducted Emission Test Setup Photo