2ADK3-AU071Karaoke Microphone with Built-in Wireless Speaker

(XING DA INTERNATIONAL ELECTRONICS LIMITED) (July 10, 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 (FCC ID: 2ADK3-AU071) [XING DA INTERNATIONAL ELECTRONICS LIMITED] (“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) Sam Shen (XING DA INTERNATIONAL ELECTRONICS LIMITED) (July 10, 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 (FCC ID: 2ADK3-AU071) [XING DA INTERNATIONAL ELECTRONICS LIMITED] (“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) Sam Shen

XING DA INTERNATIONAL ELECTRONICS LIMITED (July 10, 2023) Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: CONFIDENTIALITY REQUEST FOR (Karaoke Microphone with Built-in Wireless Speaker / AU071/ FCC ID: 2ADK3-AU071) 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 Exhibits Long-Term Confidentiality Short-Term Confidentiality NOTE 2 ID Label/Location No No Attestation Statement No No External Photos No ☐ Block Diagram ☒ ☐ Schematics ☒ ☐ Test Report No No Test Setup Photos No ☐ User’s Manual ☐ NOTE 1 ☒ Internal Photos ☐ NOTE 1 ☒ Parts List / Tune Up ☐ ☐ RF Exposure Info No No Operational Description ☒ ☐ Cover Letter(s) No No SDR Software / Security Info ☐ No required to be submitted with this application be permanently withheld from public review. Above mentioned document contains detailed system and equipment description are considered as proprietary information in operation of the equipment. The public disclosure of above documents might be harmful to our company and would give competitor an unfair advantage in the market. Please contact me if there is any information you may need. Sincerely, Signature: Name: Sam Shen Title: Sales

XING DA INTERNATIONAL ELECTRONICS LIMITED (July 10, 2023) Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: LETTER OF AGENT AUTHORIZATION To Whom It May Concern: We, the undersigned, hereby authorize (Shenzhen CTB Testing Technology 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, Signature: Name: Sam Shen Title: Sales

External Photos

Karaoke Microphone with Built-in Wireless Speaker Model: AU071 Input: 5V 0.7A Battery Capacity: 1200mAh FCC ID: 2ADK3-AU071 IC: 27880-AU071 HVIN: AU071 3103ES41230701 Made in China Karaoke Microphone with Built-in Wireless Speaker Model: AU071 Input: 5V 0.7A Battery Capacity: 1200mAh FCC ID: 2ADK3-AU071 IC: 27880-AU071 HVIN: AU071 3103ES41230701 Made in China

Internal Photos ANT

Shenzhen CTB Testing Co., Ltd. FCC ID:2ADK3-AU071 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)]·[√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. EDR: 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) Result calculatio n SAR Exclusion threshold SAR test exclusion 2.402 1.564 1.43 1±1 2.00 1.58 <5 0.49127 3.00 YES 2.441 1.885 1.54 1±1 2.00 1.58 <5 0.49524 3.00 YES 2.480 1.908 1.55 1±1 2.00 1.58 <5 0.49918 3.00 YES 2.402 2.267 1.69 2±1 3.00 2.00 <5 0.61847 3.00 YES 2.441 2.556 1.80 2±1 3.00 2.00 <5 0.62347 3.00 YES 2.480 2.601 1.82 2±1 3.00 2.00 <5 0.62843 3.00 YES 2.402 2.605 1.82 2±1 3.00 2.00 <5 0.61847 3.00 YES 2.441 2.874 1.94 2±1 3.00 2.00 <5 0.62347 3.00 YES 2.480 2.97 1.98 2±1 3.00 2.00 <5 0.62843 3.00 YES GFSK π /4DQPSK 8DQPSK Conclusion: For the max result : 0.62843≤ FCC Limit 3.0 for 1g SAR.

Inverted F Antenna Specification Summary ITEM ANT SPEC Model Name 2.4G ANT 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) 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.

Shenzhen CTB Testing Technology Co., Ltd. Report No.:CTB230704019RF Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 1 of 60 TEST REPORT Compiled by: Reviewed by: Approved by: Chen Zheng Arron Liu Bin Mei / Director Note: If there is any objection to the inspection results in this report, please submit a written report to the company within 15 days from the date of receiving the report. 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 CTB Testing Technology Co., Ltd. this report can’t be reproduced except in full. The tested sample(s) and the sample information are provided by the client. “*” indicates the testing items were fulfilled by subcontracted lab. “#” indicates the items are not in CNAS accreditation scope. Product Name: Karaoke Microphone with Built-in Wireless Speaker FCC ID: 2ADK3-AU071 Trademark: MINISO Model Number: AU071 Prepared For: XING DA INTERNATIONAL ELECTRONICS LIMITED Address: #98 LiWu Swan Industrial District, Qiao Tou Town, Dong Guan, Guang Dong, China Manufacturer: Dongguan Xing Yue Electronic Co., Ltd Address: #98 LiWu Swan Industrial District, Qiao Tou Town, Dong Guan, Guang Dong, China Prepared By: Shenzhen CTB Testing Technology Co., Ltd. Address: 1&2/F., Building A, No.26, Xinhe Road, Xinqiao, Xinqiao Street, Bao'an District, Shenzhen, Guangdong, China Sample Received Date: Jun. 21, 2023 Sample tested Date: Jun. 21, 2023 to Jul. 04, 2023 Issue Date: Jul. 04, 2023 Report No.: CTB230704019RF Test Standards FCC Part15.247 ANSI C63.10:2013 Test Results PASS Remark: This is Bluetooth radio test report. Shenzhen CTB Testing Technology Co., Ltd. Report No.:CTB230704019RF Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 2 of 60 TABLE OF CONTENT Test Report Declaration Page 1. VERSION ........................................................................................................................................ 4 2. TEST SUMMARY ........................................................................................................................... 5 3. MEASUREMENT UNCERTAINTY ................................................................................................. 6 4. PRODUCT INFORMATION AND TEST SETUP ............................................................................ 7 4.1 Product Information .......................................................................................................................... 7 4.2 Test Setup Configuration .................................................................................................................. 7 4.3 Support Equipment........................................................................................................................... 7 4.4 Channel List ..................................................................................................................................... 8 4.5 Test Mode ........................................................................................................................................ 8 4.6 Test Environment ............................................................................................................................. 8 5. TEST FACILITY AND TEST INSTRUMENT USED ....................................................................... 9 5.1 Test Facility ...................................................................................................................................... 9 5.2 Test Instrument Used ....................................................................................................................... 9 6. AC POWER LINE CONDUCTED EMISSION ................................................................................ 11 6.1 Block Diagram Of Test Setup ......................................................................................................... 11 6.2 Limit ................................................................................................................................................ 11 6.3 Test procedure ............................................................................................................................... 11 6.4 Test Result ..................................................................................................................................... 13 7. RADIATED SPURIOUS EMISSION ............................................................................................. 15 7.1 Block Diagram Of Test Setup ......................................................................................................... 15 7.2 Limit ................................................................................................................................................ 15 7.3 Test procedure ............................................................................................................................... 16 7.4 Test Result ..................................................................................................................................... 17 8. BAND EDGE AND RF COUNDUCTED SPURIOUS EMISSIONS ............................................... 26 8.1 Block Diagram Of Test Setup ......................................................................................................... 26 8.2 Limit ................................................................................................................................................ 26 8.3 Test procedure ............................................................................................................................... 26 8.4 Test Result ..................................................................................................................................... 27 9. COUDUCTED PEAK OUTPUT POWER ....................................................................................…

Text truncated - open the document above for the full version.

Radiated Emission Below 1G Above 1G Conducted emissions