2A9M6-GSK5Portable wireless karaoke speaker

Attestation Statements (September 3, 2024) TO: Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046, USA RE: Attestation Statements Part 2.911(d)(7) request for (FCC ID: 2A9M6-GSK5 ) (Shenzhen Guangsu Shidai Technology Co. , Ltd.), the undersigned, hereby authorize (NEWENERGYER LIMITED) to act as our designated U.S. agent for service of process, (Shenzhen Guangsu Shidai Technology 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. (NEWENERGYER LIMITED) accepts the responsibility to act as designated U.S. agent for service of process, provides 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. Applicant Information： Company name: Shenzhen Guangsu Shidai Technology Co. , Ltd. Contact Name: Rong Wu Address: Ji Hua Jie Dao Gan Li er Lu Ju Yin sci-tech industrial park b 2, Longgang District Shenzhen, China Telephone No: 13538214502 Email: [email protected] FRN: 0033159211 Signature [Rong Wu] U.S. Agent Information: Company Name: NEWENERGYER LIMITED Address: 1818 S Patton Ct, Denver, CO, 80219 Contact Name: CHUN LIU Telephone No: 213 289 5042 Email: [email protected] FRN: 0034665885 Signature [CHUN LIU]

(Shenzhen Guangsu Shidai Technology Co. , Ltd.) (September 3, 2024) 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: 2A9M6-GSK5) [Shenzhen Guangsu Shidai Technology 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) Rong Wu (Shenzhen Guangsu Shidai Technology Co. , Ltd.) (September 3, 2024) 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: 2A9M6-GSK5) [Shenzhen Guangsu Shidai Technology 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) Rong Wu

Shenzhen Guangsu Shidai Technology Co. , Ltd. (September 3, 2024) 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: Rong Wu Title: Sales Manager

Shenzhen Guangsu Shidai Technology Co. , Ltd. (September 3, 2024) Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: CONFIDENTIALITY REQUEST FOR (Portable wireless karaoke speaker / GS_K5, GS_K6, GS_K7, GS_K8, GS_K9, GS_K10, GS_K11, GS_K12, GS_K13, GS_K15 / FCC ID: 2A9M6-GSK5 ) 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: Rong Wu Title: Sales Manager

Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 1 of 3 Model: GS_K5 External Photos Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 2 of 3 Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 3 of 3

FCC ID LABEL: Label Location: FCC ID: 2A9M6-GSK5 Model No.: GS_K5

Shenzhen CTB Testing Co., Ltd. FCC ID:2A9M6-GSK5 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 3.166 2.07 3±1 4.00 2.51 <5 0.77860 3.00 YES 2.441 3.256 2.12 3±1 4.00 2.51 <5 0.78490 3.00 YES 2.480 2.583 1.81 2±1 3.00 2.00 <5 0.62843 3.00 YES 2.402 3.783 2.39 3±1 4.00 2.51 <5 0.77860 3.00 YES 2.441 3.903 2.46 3±1 4.00 2.51 <5 0.78490 3.00 YES 2.480 3.188 2.08 3±1 4.00 2.51 <5 0.79114 3.00 YES 2.402 4.097 2.57 4±1 5.00 3.16 <5 0.98020 3.00 YES 2.441 4.159 2.61 4±1 5.00 3.16 <5 0.98813 3.00 YES 2.480 3.277 2.13 3±1 4.00 2.51 <5 0.79114 3.00 YES GFSK π /4DQPSK 8DQPSK Conclusion: For the max result : 0.98813≤ FCC Limit 3.0 for 1g SAR.

SMDCERAMICANTENNA DataSheet TSUN TECHNOLOGY CO., LTD . Rev.1.0 TS3216E245D05 For2400-2484MHz 3.2x1.6mm[EIA1206] SHAPES AND DIMENSIONSDimensions inmm FEATURES ・Lightweight,compact ・ Widebandwidth,lowcost ・ Built-inantennawithhighgain APPLICATIONS ・ Bluetooth ・ IEEE802.11g/b ・ Zigbeesystems,etc... Rev.1.0|2 TSUN TECHNOLOGY CO., LTD DataSheet SMDCERAMICANTENNA TS3216E245D05 LW A A1H 3.2±0.11.6±0.10.15±0.05 0.4±0.150.55±0.1 正面 底面 ✷切記: SMT貼片需黑色面朝上 PARTNUMBERINGSYSTEM TS -3216 -E - Brand Dimension Material 2450 -D -05 FrequencyFeeding modeType Rev.1.0|3 TSUN TECHNOLOGY CO., LTD DataSheet SMDCERAMICANTENNA Electrical Characteristics per line(TA=25°C) T yp icalCharacteristics Fig.1VSWR 1.9 1.8 1.7 1.6 1.5 1.4 1.3 1.2 1.1 2200 2300 2600 24002500 Frequency[MHz] 2700 V . S . W . R . Parameter Specification Units FrequencyBand 2400~2483 MHz P o l a riz at i o n Linear P eakGa in 2.71 dB i P ea kEffi c i e n c y 68.8%% Im p endance 50  Rev.1.0|4 TSUN TECHNOLOGY CO., LTD DataSheet SMDCERAMICANTENNA RadiationPattern Th eGa inp atte rni smeasu r edi n FAR - fi e l dc h a m be r .DU T isplacedon t h etab l e o fr otato r ,asta n da r dho r na n te nn aa n dVecto rN et w o rk Analyzerisusedtocollect data. Fig.2FAR-fieldChamber 3DGainPattern(2400MHz) Rev.1.0|5 TSUN TECHNOLOGY CO., LTD DataSheet SMDCERAMICANTENNA 3DGainPattern(2450 MHz) 3DGainPattern(2500MHz) Rev.1.0|6 TSUN TECHNOLOGY CO., LTD DataSheet SMDCERAMICANTENNA Gain（dB） Eiciency（%） Rev.1.0|7 TSUN TECHNOLOGY CO., LTD DataSheet SMDCERAMICANTENNA Item Condition Specification Thermalshock 1.30±3minutesat-40°C±5°C, 2.Convertto+105°C(5minutes) 3.30±3minutesat+105°C±5°C, 4.Convertto-40°C(5minutes) 5.Total100continuouscycles Noapparentdamage Fulfilltheelectrical spec.aftertest. Humidityresistance 1.Humidity:85%R.H. 2.Temperature:85±5°C 3.Time:1000hours. Noapparentdamage Fulfilltheelectrical spec.aftertest. Hightemperature resistance Noapparentdamage Fulfilltheelectrical spec.aftertest. 1.Temperature:150°C±5°C 2.Time:1000hours. Lowtemperature resistance 1.Temperature:-40°C±5°C 2.Time:1000hours. Noapparentdamage Fulfilltheelectrical spec.aftertest. Solderingheatresistance 1.Solderbathtemperature:260±5°C 2.Bathingtime:10±1seconds Noapparentdamage Solderability Thedippedsurfaceoftheterminalshallbe atleast95%coveredwithsolderafterdipped insolderbathof245±5°Cfor3±1seconds. Noapparentdamage (2))StorageCondition (a)Atwarehouse:Thetemperatureshouldbewithin0~30°Candhumidityshould be lessthan60%RH.Theproductshouldbeusedwithin1yearfromthetimeof elivery. (b)Onboard:Thetemperature shouldbewithin-40~85°Candhumidityshould belessthan85%RH. (3)OperatingTemperatureRange Operatingtemperaturerange:-40°Cto+85°C. Recommended ReflowSoldercurve PACKAGINGSTYLE REELDIMENSIONS Rev.1.0|8 TSUN TECHNOLOGY CO., LTD DataSheet SMDCERAMICANTENNA (1))SolderingGunProcedure Notethefollows,incaseofusingsoldergunforreplacement. (a)Thetiptemperaturemustbelessthan350°Cfortheperiodwithin3 seconds byusingsolderinggununder30W. (b)Thesolderingguntipshallnottouchthisproductdirectly. (2)SolderingVolume Notethatexcessofsolderingvolumewilleasilygetcrackthebodyof thisproduct. Device Package NetWeight Carrier Quantity HSFStatus TS3216E245D05 3216 0.0089g Tape&Reel 5000pcs RoHScompliant Date RevisionDescriptionofchanges 2018-11-51.0 FirstVersion 2022-12-9 1.1 Updatethepackageinformation OrderInformation Revisionhistor y Thecontentsofthisdatasheetaresubjecttochangewithoutnotice. Pleaseconfirmthespecificationsanddeliveryconditionswhenplacingyourorder. ©Copyright2015，Allrightsreserved Rev.1.0|9 TSUN TECHNOLOGY CO., LTD DataSheet SMDCERAMICANTENNA TAPEDIMENSIONS Feature S p ecifications Tolerances W 8 .00±0.30 P4.00±0.10 E 1.75 ± 0 .1 0 F3.50±0.10 P22.00±0.10 D1.50 + 0.10 - 0 . 00 P o 4. 00 ± 0 .1 0 10Po40.00±0.20 TypingQuantity:5000pieces per7” reel

TEST REPORT Compiled by: Reviewed by: Approved by: Zhou Kui 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: Portable wireless karaoke speaker FCC ID: 2A9M6-GSK5 Trademark: N/A Model Number: GS_K5, GS_K6, GS_K7, GS_K8, GS_K9, GS_K10, GS_K11, GS_K12, GS_K13, GS_K15 Prepared For: Shenzhen Guangsu Shidai Technology Co. , Ltd. Address: Ji Hua Jie Dao Gan Li er Lu Ju Yin sci-tech industrial park b 2, Longgang District Shenzhen, China Manufacturer: Shenzhen Guangsu Shidai Technology Co. , Ltd. Address: Ji Hua Jie Dao Gan Li er Lu Ju Yin sci-tech industrial park b 2, Longgang District Shenzhen, 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: Aug. 21, 2024 Sample tested Date: Aug. 21, 2024 to Aug. 30, 2024 Issue Date: Aug. 30, 2024 Report No.: CTB240830017RFX Test Standards FCC CFR Title 47 Part 15 Subpart C Section 15.247 ANSI C63.10:2013 Test Results PASS Remark: This is Bluetooth radio test report. Shenzhen CTB Testing Technology Co., Ltd. Report No.: CTB240830017RFX Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 2 of 56 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 ............................................ 12 6.1 Block Diagram Of Test Setup .......................................................... 12 6.2 Limit ............................................................................... 12 6.3 Test procedure ...................................................................... 12 6.4 Test Result ......................................................................... 14 7. RADIATED SPURIOUS EMISSION ................................................... 16 7.1 Block Diagram Of Test Setup .......................................................... 16 7.2 Limit ............................................................................... 16 7.3 Test procedure ...................................................................... 17 7.4 Test Result ......................................................................... 18 8. BAND EDGE AND RF COUNDUCTED SPURIOUS EMISSIONS .......................... 27 8.1 Block Diagram Of Test Setup .......................................................... 27 8.2 Limit ............................................................................... 27 8.3 Test procedure ...................................................................... 27 8.4 Test Result ......................................................................... 28 9. COUDUCTED PEAK OUTPUT POWER ............................................... 35 9.1 Block Diagram Of Test Setup .......................................................... 35 9.2 Limit ............................................................................... 35 9.3 Test procedure ...................................................................... 35 9.4 Test Result ......................................................................... 35 10. 20DB OCCUPIED BANDWIDTH ..................................................... 39 10.1 Block Diagram Of Test Setup ......................................................... 39 10.2 Limit .............................................................................. 39 10.3 Test procedure ..................................................................... 39 10.4 Test Result ........................................................................ 39 11. CARRIERFREQUENCIES SEPARATION ............................................. 43 11.1 Block Diagram Of Test Setup ......................................................... 43 11.2 Limit .............................................................................. 43 11.3 Test procedure ..................................................................... 43 11.4 Test Result ........................................................................ 43 12. HOPPING CHANNEL NUMBER ..................................................... 47 12.1 Block Diagram Of Test Setup ......................................................... 47 12.2 Limit .....................…

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Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 1 of 2 Model: GS_K5 Radiated Emission Below 1G Above 1G Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 2 of 2 Conducted emissions