2ATV2-003Wireless Mic

XL PARTY SPEAKER USER GUIDE Contents & Information CONTENTS & INFORMATION IMPORTANT SAFETY INSTRUCTIONS ADDITIONAL SAFETY PRECAUTIONS WHAT'S IN THE BOX ? GET TO KNOW YOUR WIRELESS PARTY SPEAKER PLACEMENT CHARGING YOUR SPEAKER USING YOUR SPEAKER SPECIFICATIONS TROUBLESHOOTING 1 IMPORTANT SAFETY INSTRUCTIONS 1. Read these instructions carefully. 2. Retain these instructions for future reference. 3. Observe all warnings. 4. Follow all instructions. 5. Do not use this product near water. 6. Clean only with a dry cloth. 7. Do not block any of the ventilation openings. Install in accordance with the manufacturer's instructions. 8. Do not install this product near heat sources such as radiators, heat registers, stoves, or other equipment (including amplifiers) that produce heat. 9. Do not defeat the safety purpose of the polarized or ground-type plug. A polarized plug has two blades with one wider than the other. A grounding type plug has two blades and a third grounding prong. The wide blade or the grounding prong is provided for your safety. When the provided plug does not fit into your outlet, consult an electrician for replacement of the obsolete outlet. 10. receptacles, and where it exits the product. 11. Only use attachments/accessories specified by the manufacturer. 12. tip-over and potential injury. 13. Unplug this product during lightning storms or when unused for long periods of time. 14. been damaged in any way, including damage to the power cord or plug, liquid spilled on the product, objects falling into the product, exposure to rain or moisture, abnormal operation, or if the product has been dropped. 2 All servicing must be performed by qualified service personnel, Service is required if the product has Route the power cord so it will not be walked on or pinched, particularly at plugs, convenience Use the product only with a cart, stand, tripod, bracket, or table specified by the manufacturer or sold with the product. If a cart is used, use caution when moving the cart and product together to prevent FCC Statement 1. operation. 2. 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, This equipment generates uses and can radiate radio frequency energy and, if not installed and used in 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. 3 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 Changes or modifications not expressly approved by the party responsible for compliance could void the pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. 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 1. Do not expose the battery pack or installed batteries to excessive heat, including direct sunlight, fire, or similar heat sources. 2. Do not replace the battery with an incorrect type, as this may disable built-in safety protections. 3. Do not dispose of batteries in fire or a hot oven, and do not crush or cut them, as this may result in an explosion. 4. Do not expose batteries to extremely high or low temperatures, as this may cause an explosion or the leakage of flammable liquid or gas. 5. Do not expose batteries to extremely low air pressure, as this may result in an explosion or the leakage of flammable liquid or gas. 4 Radiation Exposure Statement GPS
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"57 This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This
equipment should be installed and operated with minimum distance 20 cm between the radiator & your body. Built-in Battery AA Alkaline Batteries 1. The wireless microphone is supplied with AA alkaline batteries. If swallowed, a battery can pose a choking hazard. Even if it does not reach the stomach, a swallowed battery can cause severe internal or death. 2. and keep it out of reach of infants and children. 3. minimize the risk of serious injury or death. 4. Never attempt to recharge or open the batteries. Doing so may cause an explosion. 5. Never damage or deform the batteries. 6. Do not dispose of batteries in fire or a hot oven, and do not crush or cut them, as this may result in an explosion. 7. Do not expose batteries to extremely high or low temperatures, as this may cause an explosion or the leakage of flammable liquid or gas. 8. Do not expose batteries to extremely low air pressure, as this may result in an explosion or the leakage of flammable liquid or gas. Failure to follow these guidelines may result in battery fluid leakage, which can cause skin irritation. In case of contact: 9. Rinse the affected area with plenty of clean water. 10. Do not rub your eyes. If battery fluid comes into contact with the eyes, rinse immediately with clean water for at least 10 minutes and seek medical attention. 11. Only use batteries of the same or an equivalent type. Replacement of the batteries with an incorrect type can result in explosion or leakage. 12. used for an extended period of time. 13. Dispose of used batteries in accordance with local environmental regulations. 5 Remove the batteries from the battery compartmen…

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DATE Fed e Auth 7345 Colu On o Sant this des c each Com appr For i beha for c 1122 <Sig n Name Title： Applic : 3/19/2026 eral Commu horization & 5 Oakland M umbia, Mary our behalf, tun, Houjie, application cribe the dev h unit manuf mmission’s r roval with th instances w alf, I acknow certification, 22, United S nature> e：Thomas Hardware cant Compa 6 unications C Evaluation D Mills Road land 21046 I appoint E Dongguan, for equipm vice or syste factured, im regulations is applicati o where our au wledge that still resides States Nguyen Engineerin any：Walma ommission Division Author i EST Techno Guangdon ment certifica em for which ported or m will have a on. uthorized ag all responsi with Walm a g Manager art, Inc. ity to Act as ology Co., g, China to ation. I cert h equipment arketed, as affixed to it ent signs t h ibility for com art, Inc. Add Project Fra s Agent Ltd. Addre o act as our tify that sub t certification defined in t a label ide he applicatio mplying with dress: 74 Ke anklin ess:Chilingxi r agent in th bmitted doc n is sought. he Federal entical to th on for certific h the terms ent St #2, Br iang, Qisha he preparati cuments pro I also certify Communica hat submitte cation on ou and conditio rooklyn, NY antou, on of operly y that ations ed for ur ons Y

DATE : 3/1 Federal C o Authorizati 7345 Oakl a Columbia, RE: LETT E To Whom We, the u n relating to these matt We also h e benefits, in U.S.C.853( Sincerely, <Signatur e Name：Th Title：Hard Company： 19/2026 ommunicatio on & Evalua and Mills Ro Maryland 2 ER OF AGE It May Conc ndersigned, application ers. ereby certify ncluding FC (a). e> homas Nguy dware Engin Walmart, I ons Commis ation Divisio oad 21046 ENT AUTHO cern: hereby aut h for equipme y that no pa C benefits, yen neering Man Inc. ssion on ORIZATION horize Com ent authoriz rty to the ap pursuant to nager Proje N mpliance Tes zation, includ pplication au o Section 53 ect Franklin sting, LLC to ding the sig uthorized he 301 of the A o act on our ning of all d ereunder is nti-Drug A b r behalf in a documents r subject to t buse Act of 1 ll matters relating to the denial of 1988, 21 f

DATE : 3/19/2026 Equipment Autorisation Division Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 FCC ID: 2ATV2-003 Product Name: Wireless Mic Request for Confidentiality Pursuant to Sections 0.457 and 0.459 of the commissions rules, we hereby request that the following documents be held confidential:  Schematics  Block diagram  Operation description These materials contain trade secrets and proprietary information and are not customarily released to the public. The public disclosure of this information might be harmful to the company and provide unjustified benefits to our competitors. <Signature> Name：Thomas Nguyen Title：Hardware Engineering Manager Project Franklin Company：Walmart, Inc.

External Photos M/N: SD-SL12 External Photos M/N: SD-SL12 External Photos M/N: SD-SL12

Label Location

Internal Photos M/N: SD-SL12 Internal Photos M/N: SD-SL12 Internal Photos M/N: SD-SL12 Antenna

Page 1 of 3 Report No. ESTE-R2603182 FCC RF EXPOSURE REPORT Walmart, Inc. Wireless Mic Model Number: SD-SL12 FCC ID: 2ATV2-003 Applicant: Walmart, Inc. Address: 74 Kent St #2, Brooklyn, NY 11222, United States Prepared By: EST Technology Co., Ltd. Chilingxiang, Qishantou, Santun, Houjie, Dongguan, Guangdong, China Tel: 86-769-83081888-808 Report Number: ESTE-R2603182 Date of Test: Feb. 06, 2026 to Mar. 13, 2026 Date of Report: Mar. 17, 2026 Page 2 of 3 Report No. ESTE-R2603182 1. Applicable Standards FCC Part 2(Section 2.1093) FCC KDB 447498 D04 Interim General RF Exposure Guidance v01 2. Exposure Evaluation of Portable or Mobile Devices Human exposure to RF emissions from portable devices (47 CFR §2.1093), as defined by the FCC, must be evaluated with respect to the FCC-adopted limits for SAR. Evaluation of mobile devices, as defined by the FCC, may also be performed with respect to SAR limits, but in such cases it is usually simpler and more cost-effective to evaluate compliance with respect to field strength or power density limits. For certain devices that are designed to be used in both mobile and portable configurations similar to those described in 47 CFR §2.1091(d)(4), such as certain desktop phones and wireless modem modules, compliance for mobile configurations is also satisfied when the same device is evaluated for SAR compliance in portable configurations. The test exclusions are applicable only when the minimum test separation distance is ≤ 50 mm and for transmission frequencies between 300 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. Page 3 of 3 Report No. ESTE-R2603182 3. Evaluation Results Mode Channel (MHz) Peak Output Power (dBm) Antenna Gain (dBi) Effective Radiated Power (dBm) Target Power (dBm) Max. Target Power (mW) SAR Test Exemption Limit (mW) FM 661.4 9.57 1.8 9.22 9±1 10.000 12.78 662.0 9.48 1.8 9.13 9±1 10.000 12.78 662.9 9.53 1.8 9.18 9±1 10.000 12.78 Note: 1. Limited=2040*f*(0.5/20)^x, x=-log(60/(2040*f*√f)). 2. We choose f=0.6629GHz (Highest frequency) to calculate MPE limit as higher frequency will have lower MPE limits. 3. SAR Test Exclusion Thresholds is 12.78mW for separation distance 5mm. Therefore, SAR test is not required. End of Test Report

[键入文字] Page 1 of 46 Report No. ESTE-R2603181 FCC PART 15C TEST REPORT FOR CERTIFICATION On Behalf of Walmart, Inc. Wireless Mic Model Number: SD-SL12 FCC ID: 2ATV2-003 Applicant: Walmart, Inc. Address: 74 Kent St #2, Brooklyn, NY 11222, United States Prepared By: EST Technology Co., Ltd. Chilingxiang, Qishantou, Santun, Houjie, Dongguan, Guangdong, China Tel: 86-769-83081888-808 Report Number: ESTE-R2603181 Date of Test: Feb. 06, 2026 to Mar. 13, 2026 Date of Report: Mar. 17, 2026 [键入文字] Page 2 of 46 Report No. ESTE-R2603181 TABLE OF CONTENTS Description Page TEST REPORT VERIFICATION .......................................................................................................... 3 1. GENERAL INFORMATION ................................................................................................................... 5 1.1. Description of Device (EUT) ............................................................................................................ 5 1.2. Antenna Information ......................................................................................................................... 5 1.3. Information of RF Cable ................................................................................................................... 5 2. SUMMARY OF TEST ........................................................................................................................... 6 2.1. Summary of test result ..................................................................................................................... 6 2.2. Test Facilities ..................................................................................................................................... 7 2.3. Measurement uncertainty ................................................................................................................ 8 2.4. Assistant equipment used for test .................................................................................................. 8 2.5. Block Diagram ................................................................................................................................... 8 2.6. Test Mode .......................................................................................................................................... 9 2.7. Power Setting of Test Software ...................................................................................................... 9 2.8. Channel List ..................................................................................................................................... 10 2.9. Test Equipment List ........................................................................................................................ 11 3. OCCUPIED BANDWIDTH .................................................................................................................. 12 3.1. Limit ................................................................................................................................................... 12 3.2. Test Setup ........................................................................................................................................ 12 3.3. Spectrum Analyzer Setting ............................................................................................................ 12 3.4. Test Procedure ................................................................................................................................ 12 3.5. Test Result ....................................................................................................................................... 13 4. RF OUTPUT POWER ....................................................................................................................... 16 4.1. Limit ................................................................................................................................................... 16 4.2. Test Setup ........................................................................................................................................ 16 4.3. Spectrum Analyzer Setting ............................................................................................................ 16 4.4. Test Procedure ................................................................................................................................ 16 4.5. Test Result ....................................................................................................................................... 17 5. FREQUENCY STABILITY .................................................................................................................. 20 5.1. Limit ................................................................................................................................................... 20 5.2. Test Setup ........................................................................................................................................ 20 5.3. Spectrum Analyzer Setting ............................................................................................................ 20 5.4. Test Procedure ................................................................................................................................ 20 5.5. Test Result ....................................................................................................................................... 22 6. EMISSION MASK ............................................................................................................................. 23 6.1. Limit ................................................................................................................................................... 23 6.2. Test Setup ........................................................................................................................................ 23 6.3. Spectrum Analyzer Setting ......…

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YUEQINGLIYINELECTRONICCO.,LTD Gain Test Report Product type UHF wireless microphone transmitting spring antenna Model number UHF -SA -500SupplierYUEQINGLIYINELECTRONICCO.,LTD I. Basic Parameters 1. Basic Parameters Working frequency band: 470 - 960 MHz 2. Impedance: 50 Ω 3. Maximum gain: 1.8 dBi 4. Line loss: < 0.3 dB 5. Standing Wave Ratio (VSWR): ≤ 1.5 6. Polarization mode: Vertical polarization 7. Power capacity: ≥ 1W 8. Product form: PCB board-mounted spring antenna II.Mechanical Parameters 1. Material: Copper plated with gold 2. Height: 20 mm 3. Outer diameter of the spring: 6 mm 4. Wire diameter: 0.6 mm 5. Installation method: PCB soldering III. Radiation Direction Diagram (Pattern/Apple Diagram) Explanation 1. Radiation type: Omnidirectional radiation 2. Planar pattern: Circular (uniform coverage of 360 °) 3. 3. Vertical plane pattern: "8" shape standard omnidirectional antenna pattern 4. Applicablescenarios: Wireless microphonemobletransmision,no signablind areas IV.Test Conclusion This antenna meets the requirements for wireless microphone transmission in the 470 -960 MHz frequency band in terms of gain, VSWR and line loss. It also complies with the conventional EMC and RF certification testing standards. Tester: Zhang Lehui 20 Ø0.6 Ø 6 1.Unit：mm Spring antenna UHF-SA-500

Radiated Test (30-1000 MHz) Radiated Test (Above 1GHz)