2BBZDBL-G01Smart colorful light Bluetooth audio

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(SHAOXING BLANC PHOTOELECTRIC CO.,LTD) (2023.07.15) 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 (FCC ID: 2BBZDBL-G01) [SHAOXING BLANC PHOTOELECTRIC 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) Chen yueqiao (SHAOXING BLANC PHOTOELECTRIC CO.,LTD) (2023.07.15) 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 (FCC ID: 2BBZDBL-G01) [SHAOXING BLANC PHOTOELECTRIC 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) Chen yueqiao

SHAOXING BLANC PHOTOELECTRIC CO.,LTD 2023.7.15 Eurofins Electrical and Electronic Testing NA, Inc. 914 W. Patapsco Avenue Baltimore, MD 21230 USA RE: CONFIDENTIALITY REQUEST FOR EUT NAME: Smart colorful light Bluetooth audio Trademark: N/A MODEL : BL-G01 FCC ID: 2BBZDBL-G01 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 - Block Diagram - Schematics - Operational Description required to be submitted with this application be permanently withheld from public review. The above materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these materials may be harmful to the applicant and provide unjustified benefits to its competitors. Please contact me if there is any information you may need. Sincerely, Client’s signature: Client’s name / title : Chen yueqiao/Manager Contact information / address: Dongguang village, Fenghui town, Shangyu area, Shaoxing city, Zhejiang Province, China

SHAOXING BLANC PHOTOELECTRIC CO.,LTD 2023.7.15 Eurofins Electrical and Electronic Testing NA, Inc. 914 W. Patapsco Avenue Baltimore, MD 21230 USA RE: LETTER OF AGENT AUTHORIZATION To Whom It May Concern: We, the undersigned, hereby authorize Shenzhen BCTC Testing 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, Client’s signature: Client’s name / title : Chen yueqiao/Manager Contact information / address: Dongguang village, Fenghui town, Shangyu area, Shaoxing city, Zhejiang Province, China

External Photos

Label & label location 10mm*20mm Smart colorful light Bluetooth audio FCC ID:2BBZDBL-G01

Internal Photos BT Antenna Wireless Antenna BLE Antenna

FCC §15.247 (i), §2.1091 – RF Exposure FCC ID:2BBZDBL-G01 Applied procedures / limit According to FCC §15.247(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. Limits for Occupational / Controlled Exposure Frequency Range (MHz) Electric Field Strength (E) (V/m) Magnetic Field Strength (H) (A/m) Power Density (S) (mW/ cm 2 ) Averaging Time |E| 2 ,|H| 2 or S (minutes) 0.3-3.0 614 1.63 (100)* 6 3.0-30 1842 / f 4.89 / f (900 / f)* 6 30-300 61.4 0.163 1.0 6 300-1500 F/300 6 1500-100,000 5 6 Note: ƒ is frequency in MHz * = Power density limit is applicable at frequencies greater than 100 MHz Limits for General Population / Uncontrolled Exposure Frequency Range (MHz) Electric Field Strength (E) (V/m) Magnetic Field Strength (H) (A/m) Power Density (S) (mW/ cm 2 ) Averaging Time |E| 2 ,|H| 2 or S (minutes) 0.3-1.34 614 1.63 (100)* 30 1.34-30 824/f 2.19/f (180/f)* 30 30-300 27.5 0.073 0.2 30 300-1500 F/1500 30 1500-100,000 1.0 30 Note: f = frequency in MHz * = Plane-wave equivalent power density MPE PREDICTION Predication of MPE limit at a given distance, Equation from OET Bulletin 65, Edition 97-01 Where: S = power density P = power input to antenna G = power gain of the antenna in the direction of interest relative to an isotropic radiator R = distance to the center of radiation of the antenna, R=0.2m TEST RESULTS Modulation Test frequency (KHz) Output Power (dBuV/m) Output Power (dBm) Wireless charge 127.6 87.29 -13 Below 1GHz: dBm=dBuV/m-95.2-6 Tune up Produce power Maximum peak output power (dBm) Output power to antenna (mW) Antenna Gain (numeric) Pow er Dens ity (S) (m W/ cm 2) Limit (mW / cm2 ) Result BT -2±1 -1 0.79 0.855(-0.68dBi) 0.00135 1 Pass BLE 0±1 1 1.26 0.875(-0.58dBi) 0.00219 1 Pass Wireless charge -13±1 -12 0.06 1(0dBi) 0.00013 1 Pass For the Max simultaneous transmission: Power Density (S) (mW/ cm2) Total Power Density (S) Limit Result BT 0.00135 0.00367 1 Pass BLE 0.00219 Wireless charge 0.00013 For the max result : 0.00367≤ 1.0, compliance with FCC's RF Exposure

Inverted F Antenna Specification Summary ITEMANT SPEC Model Name 2.4G ANT HorizontalVertical 2400MHz 2400MHz2500MHz2400MHz2400MHz 2500MHz Center Frequency -1.73-0.84-0.68-6.15-3.70-2.32 MAX. Gain -0.68 PolarizationHorizontal and Vertical Azimuth Beam Pattern Omni-directional Impedance50 Ohm Antenna Length 38.20mm Manufacture ZHUHAI JIELI TECHNOLOGY CO.,LTD Antenna Photo & Length (mm) Xiangzhou District, Zhuhai City, Guangdong Province address Horizontal: 2400 MHz 2450 MHz 2500 MHz Power (dBm) Max: 0 Min: -40 Scale: 5/div Gain(dB) Frequency (MHz) Max Min Avg 2400 -1.73178 -30.0815 -8.48713 2450 -0.845801 -38.5605 -7.88012 2500 -0.685586 -24.0318 -6.79139 Vertical: 2400 MHz 2450 MHz 2500 MHz Power (dBm) Max: 0 Min: -30 Scale: 5/div Gain(dB) Frequency (MHz) Max Min Avg 2400 -6.1530 -24.1420 -13.0295 2450 -3.7054 -26.5836 -10.6700 2500 -2.32122 -30.4301 -9.70536 ANT Test Labs：Attestation of Global Compliance Co., Ltd.

No.：BCTC/RF-EMC-007 Page: 1 of 79 Edition：B.0 TEST REPORT Shenzhen BCTC Testing Co., Ltd. Report No.: BCTC2306056939-3E Applicant: SHAOXING BLANC PHOTOELECTRIC CO.LTD Product Name: Smart colorful light Bluetooth audio Model/Type reference: BL-G01 Tested Date: 2023-06-12 to 2023-07-06 Issued Date: 2023-07-06 Report No.: BCTC2306056939-3E No.：BCTC/RF-EMC-007 Page: 2 of 79 Edition：B.0 FCC ID:2BBZDBL-G01 The test report is effective only with both signature and specialized stamp. This result(s) shown in this report refer only to the sample(s) tested. Without written approval of Shenzhen BCTC Testing Co., Ltd, this report can’t be reproduced except in full. The tested sample(s) and the sample information are provided by the client. Product Name: Smart colorful light Bluetooth audio Trademark: N/A Model/Type Reference: BL-G01 Prepared For: SHAOXING BLANC PHOTOELECTRIC CO.LTD Address: Dongguang village, Fenghui town, Shangyu area, Shaoxing city, Zhejiang Province, China Manufacturer: SHAOXING BLANC PHOTOELECTRIC CO.LTD Address: Dongguang village, Fenghui town, Shangyu area, Shaoxing city, Zhejiang Province, China Prepared By: Shenzhen BCTC Testing Co., Ltd. Address: 1-2/F., Building B, Pengzhou Industrial Park, No.158, Fuyuan 1st Road, Zhancheng, Fuhai Subdistrict, Bao'an District, Shenzhen, Guangdong, China Sample Received Date: 2023-06-12 Sample tested Date: 2023-06-12 to 2023-07-06 Issue Date: 2023-07-06 Report No.: BCTC2306056939-3E Test Standards FCC Part15.247 ANSI C63.10-2013 Test Results PASS Remark: This is Bluetooth Classic radio test report. Tested by: Approved by: Kelsey Tan/ Project Handler Zero Zhou/Reviewer Report No.: BCTC2306056939-3E No.：BCTC/RF-EMC-007 Page: 3 of 79 Edition：B.0 Table Of Content Test Report Declaration Page 1. Version .................................................................................................................. 5 2. Test Summary ....................................................................................................... 6 3. Measurement Uncertainty ..................................................................................... 7 4. Product Information And Test Setup ..................................................................... 8 4.1 Product Information ............................................................................................... 8 4.2 Test Setup Configuration ...................................................................................... 8 4.3 Support Equipment ............................................................................................... 9 4.4 Channel List .......................................................................................................... 9 4.5 Test Mode ........................................................................................................... 10 4.6 Table Of Parameters Of Text Software Setting ................................................... 10 5. Test Facility And Test Instrument Used ............................................................... 11 5.1 Test Facility ......................................................................................................... 11 5.2 Test Instrument Used .......................................................................................... 11 6. Conducted Emissions .......................................................................................... 13 6.1 Block Diagram Of Test Setup .............................................................................. 13 6.2 Limit .................................................................................................................... 13 6.3 Test procedure .................................................................................................... 13 6.4 EUT operating Conditions ................................................................................... 13 6.5 Test Result .......................................................................................................... 14 7. Radiated emissions ............................................................................................. 16 7.1 Block Diagram Of Test Setup .............................................................................. 16 7.2 Limit .................................................................................................................... 17 7.3 Test procedure .................................................................................................... 18 7.4 EUT operating Conditions ................................................................................... 19 7.5 Test Result .......................................................................................................... 19 8. Radiated Band Emission Measurement And Restricted Bands Of Operation ..... 23 8.1 Block Diagram Of Test Setup .............................................................................. 23 8.2 Limit .................................................................................................................... 23 8.3 Test procedure .................................................................................................... 24 8.4 EUT operating Conditions ................................................................................... 24 8.5 Test Result .......................................................................................................... 25 9. Spurious RF Conducted Emissions ..................................................................... 26 9.1 Block Diagram Of Test Setup .............................................................................. 26 9.2 Limit .................................................................................................................... 26 9.3 Test procedure .................................................................................................... 26 9.4 Test Result .......................................................…

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Report No.: BCTC2306056939-3E No.：BCTC/RF-EMC-007 Page: 62 of 79 Edition：B.0 CFS NVNT 1-DH1 2480MHz CFS NVNT 2-DH1 2402MHz Report No.: BCTC2306056939-3E No.：BCTC/RF-EMC-007 Page: 63 of 79 Edition：B.0 CFS NVNT 2-DH1 2441MHz CFS NVNT 2-DH1 2480MHz Report No.: BCTC2306056939-3E No.：BCTC/RF-EMC-007 Page: 64 of 79 Edition：B.0 CFS NVNT 3-DH1 2402MHz CFS NVNT 3-DH1 2441MHz Report No.: BCTC2306056939-3E No.：BCTC/RF-EMC-007 Page: 65 of 79 Edition：B.0 CFS NVNT 3-DH1 2480MHz Report No.: BCTC2306056939-3E No.：BCTC/RF-EMC-007 Page: 66 of 79 Edition：B.0 13. Number Of Hopping Frequency 13.1 Block Diagram Of Test Setup 13.2 Limit Frequency hopping systems in the 2400-2483.5 MHz band shall use at least 15 channels. 13.3 Test procedure 1. Remove the antenna from the EUT and then connect a low RF cable from the antenna port to the spectrum. 2. Set the spectrum analyzer: RBW = 100kHz. VBW = 300kHz. Sweep = auto; Detector Function = Peak. Trace = Max hold. 3. Allow the trace to stabilize. It may prove necessary to break the span up to sections. in order to clearly show all of the hopping frequencies. The limit is specified in one of the subparagraphs of this Section. 4. Set the spectrum analyzer: Start Frequency = 2.4GHz, Stop Frequency = 2.4835GHz. Sweep=auto; 13.4 Test Result Condition Mode Hopping Number Limit Verdict NVNT 1-DH1 79 15 Pass NVNT 2-DH1 79 15 Pass NVNT 3-DH1 79 15 Pass Report No.: BCTC2306056939-3E No.：BCTC/RF-EMC-007 Page: 67 of 79 Edition：B.0 Test Graphs Hopping No. NVNT 1-DH1 2441MHz Hopping No. NVNT 2-DH1 2441MHz Report No.: BCTC2306056939-3E No.：BCTC/RF-EMC-007 Page: 68 of 79 Edition：B.0 Hopping No. NVNT 3-DH1 2441MHz Report No.: BCTC2306056939-3E No.：BCTC/RF-EMC-007 Page: 69 of 79 Edition：B.0 14. Dwell Time 14.1 Block Diagram Of Test Setup 14.2 Limit Frequency hopping systems in the 2400-2483.5 MHz band shall use at least 15 channels. The average time of occupancy on any channel shall not be greater than 0.4 seconds within a period of 0.4 seconds multiplied by the number of hopping channels employed. Frequency hopping systems may avoid or suppress transmissions on a particular hopping frequency provided that a minimum of 15 channels are used. 14.3 Test procedure 1. Remove the antenna from the EUT and then connect a low RF cable from the antenna port to the spectrum. 2. Set spectrum analyzer span = 0. Centred on a hopping channel; 3. Set RBW = 1MHz and VBW = 3MHz.Sweep = as necessary to capture the entire dwell time per hopping channel. Set the EUT for DH5, DH3 and DH1 packet transmitting. 4. Use the marker-delta function to determine the dwell time. If this value varies with different modes of operation (e.g.. data rate. modulation format. etc.). repeat this test for each variation. The limit is specified in one of the subparagraphs of this Section. Submit this plot(s). 14.4 Test Result DH5 Packet permit maximum 1600 / 79 / 6 hops per second in each channel (5 time slots RX, 1 time slot TX). DH3 Packet permit maximum 1600 / 79 / 4 hops per second in each channel (3 time slots RX, 1 time slot TX). DH1 Packet permit maximum 1600 / 79 /2 hops per second in each channel (1 time slot RX, 1 time slot TX). So, the Dwell Time can be calculated as follows: DH5:1600/79/6*0.4*79*(MkrDelta)/1000 DH3:1600/79/4*0.4*79*(MkrDelta)/1000 DH1:1600/79/2*0.4*79*(MkrDelta)/1000 Remark: Mkr Delta is once pulse time. Report No.: BCTC2306056939-3E No.：BCTC/RF-EMC-007 Page: 70 of 79 Edition：B.0 Condition Mode Frequency (MHz) Pulse Time (ms) Total Dwell Time (s) Limit (s) Verdict NVNT 1-DH1 2441 0.375 0.120 0.4 Pass NVNT 1-DH3 2441 1.631 0.261 0.4 Pass NVNT 1-DH5 2441 2.88 0.307 0.4 Pass NVNT 2-DH1 2441 0.385 0.123 0.4 Pass NVNT 2-DH3 2441 1.636 0.262 0.4 Pass NVNT 2-DH5 2441 2.884 0.308 0.4 Pass NVNT 3-DH1 2441 0.386 0.124 0.4 Pass NVNT 3-DH3 2441 1.636 0.262 0.4 Pass NVNT 3-DH5 2441 2.887 0.308 0.4 Pass Test Graphs Dwell NVNT 1-DH1 2441MHz One Burst Report No.: BCTC2306056939-3E No.：BCTC/RF-EMC-007 Page: 71 of 79 Edition：B.0 Dwell NVNT 1-DH3 2441MHz One Burst Dwell NVNT 1-DH5 2441MHz One Burst Report No.: BCTC2306056939-3E No.：BCTC/RF-EMC-007 Page: 72 of 79 Edition：B.0 Dwell NVNT 2-DH1 2441MHz One Burst Dwell NVNT 2-DH3 2441MHz One Burst Report No.: BCTC2306056939-3E No.：BCTC/RF-EMC-007 Page: 73 of 79 Edition：B.0 Dwell NVNT 2-DH5 2441MHz One Burst Dwell NVNT 3-DH1 2441MHz One Burst Report No.: BCTC2306056939-3E No.：BCTC/RF-EMC-007 Page: 74 of 79 Edition：B.0 Dwell NVNT 3-DH3 2441MHz One Burst Dwell NVNT 3-DH5 2441MHz One Burst Report No.: BCTC2306056939-3E No.：BCTC/RF-EMC-007 Page: 75 of 79 Edition：B.0 15. Antenna Requirement 15.1 Limit 15.203 requirement: For intentional device, according to 15.203: an intentional radiator shall be designed to ensure that no antenna other than that furnished by the responsible party shall be used with the device. 15.2 Test Result The EUT antenna is PCB antenna, fulfill the requirement of this section. Report No.: BCTC2306056939-3E No.：BCTC/RF-EMC-007 Page: 76 of 79 Edition：B.0 16. EUT Photographs EUT Photo 1 EUT Photo 2 Report No.: BCTC2306056939-3E No.：BCTC/RF-EMC-007 Page: 77 of 79 Edition：B.0 17. EUT Test Setup Photographs Conducted Measurement Photo Radiated Measurement Photos Report No.: BCTC2306056939-3E No.：BCTC/RF-EMC-007 Page: 78 of 79 Edition：B.0 Report No.: BCTC2306056939-3E No.：BCTC/RF-EMC-007 Page: 79 of 79 Edition：B.0 STATEMENT 1. The equipment lists are traceable to the national reference standards. 2. The test report can not be partially copied unless prior written approval is issued from our lab. 3. The test report is invalid without the "special seal for inspection and testing". 4. The test report is invalid without the signature of the approver. 5. The test process and test result is only related to the Unit Under Test. 6. Sample information is provided by the client and the laboratory is not responsible for its authenticity. 7. The quality system of our laboratory is in accordance with ISO/IEC17025. 8. If there is any objection to this test report, the clie…

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Report No.: BCTC2306056939-2E No.：BCTC/RF-EMC-005 Page 10 of 13 Edition：B.0 5. EUT Test Setup Photographs Report No.: BCTC2306056939-2E No.：BCTC/RF-EMC-005 Page 11 of 13 Edition：B.0 Report No.: BCTC2306056939-2E No.：BCTC/RF-EMC-005 Page 12 of 13 Edition：B.0 Report No.: BCTC2306056939-1E No.：BCTC/RF-EMC-005 Page 24 of 26 Edition：B.0 11. EUT Test Setup Photographs Conducted Emissions Photo Radiated Measurement Photos Report No.: BCTC2306056939-1E No.：BCTC/RF-EMC-005 Page 25 of 26 Edition：B.0 Report No.: BCTC2306056939-3E No.：BCTC/RF-EMC-007 Page: 78 of 79 Edition：B.0