2BG4G-EC-AS602EC-AS602 Bluetooth Speaker

1/1 US Agent for Service of Process LETTER OF ATTESTATION TO: Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 US Agent for Service of Process: Company Name: Electronic Mac, Inc. FRN: 0033414541 Contact Name:Ray Sia Address: 6525 Crown Blvd, # 20805, San Jose, CA 95120 Telephone No: 408-332-2399 Email: [email protected] Applicant: Company name: Shenzhen yikongdi Intelligent Home Furnishing Technology Co., Ltd. Product Description: EC-AS602 Bluetooth Speaker Grantee code: 2BG4G F CC ID: 2BG4G-EC-AS602 FRN：0035576982 Contact Name: Dandan Shen Address：2F,Building 5th, Rong TaiJia Industrial Area, LiSongLang,GongMing Town,ShenZhen. Telephone No: 15118811138 Email: [email protected] [Shenzhen yikongdi Intelligent Home Furnishing Technology Co., Ltd.] certifies that, as of the date of this filing of the application with the TCB, [Electronic Mac, Inc.] is our designated US agent for service of process for the above referenced FCC ID. [Shenzhen yikongdi Intelligent Home Furnishing 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 equipment. [Electronic Mac, Inc.] accepts, as of the date of the filing of the application, the obligation of the designated US agent for service of process for the above reference FCC ID. The US Agent for Service of Process is aware of and agrees to comply with the requirements outlined in the FCC Equipment Authorization Program, Report and Order FCC 22-84, and clause § 2.911. The Applicant is aware of and agrees to comply with the requirements outlined in the FCC Equipment Authorization Program, Report and Order FCC 22-84, and clause § 2.911. Date: 2024/08/15 Applicant’s Name: Shenzhen yikongdi Intelligent Home Furnishing Technology Co., Ltd. US Agent’s Name: Electronic Mac, Inc. Title: Manager Title: General Manager Signature Signature

C5266091_X24_Ed.2 1/1 “Attestation Statements” TO: Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 The Commission adopted rules that prohibit equipment authorization for “covered” telecommunications equipment and video surveillance equipment produced by entities identified on the Commission’s Covered List 1 , which is periodically updated. See the Covered List for more details. This Attestation Statement is to confirm that we follow the Section 2.911(d)(5)(i)-(ii) Applicant Company name: Shenzhen yikongdi Intelligent Home Furnishing Technology Co., Ltd. Grantee code: 2BG4G FCC ID: 2BG4G-EC-AS602 FRN: 0035576982 Contact Name: Dandan Shen Address: 2F,Building 5th, Rong TaiJia Industrial Area, LiSongLang,GongMing Town,ShenZhen. Telephone No: 15118811138 Fax No: / Email: [email protected] i. [Shenzhen yikongdi Intelligent Home Furnishing 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. The applicant must sign this certification. ii. [Shenzhen yikongdi Intelligent Home Furnishing Technology Co., Ltd.] (“the applicant”) certifies that, as of the date of the filing of the application, the applicant [ is not] (as a specifically named entity or any of its subsidiaries or affiliates) identified on the Covered List as an entity producing “covered” equipment. The applicant must sign this certification. [Shenzhen yikongdi Intelligent Home Furnishing 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 . Date: 2024/08/15 Applicant’s Name: Shenzhen yikongdi Intelligent Home Furnishing Technology Co., Ltd. Title: Manager Signature 1 The Commission’s Covered List is published by the Public Safety and Homeland Security Bureau and posted on the Commission’s website. This Covered List, which is periodically updated, identifies particular equipment, produced by particular entities, that constitutes “covered” equipment. https://www.fcc.gov/supplychain/coveredlist

Shenzhen yikongdi Intelligent Home Furnishing Technology Co., Ltd. Product Similarity Declaration Product name: EC-AS602 Bluetooth Speaker Model name: EC-AS602-001,EC-AS602-0**/EC-AS602-1**/EC- AS602-2**/EC-AS602-3**/EC-AS603-***（*=0-9,representing different sales customers and regions, without affecting product safety and electromagnetic compatibility performance） We (Shenzhen yikongdi Intelligent Home Furnishing Technology Co., Ltd.) hereby state that all the models are electrical identical including the same software parameter and hardware design (i.e., circuit design, PCB Layout, RF module/circuit, antenna type(s) and antenna location, components on PCB, etc.,), same mechanical structure and design (including product enclosure, materials, etc.,), the only difference is the model names. The purpose of naming different names is to distinguish between different sales channels and regions. Signature: Name: Dandan Shen Title: Manager Date: 2024.8.15

C5266091_X8_Ed.1 1/1 Letter of Authorization Shenzhen yikongdi Intelligent Home Furnishing Technology Co., Ltd. Company: Shenzhen yikongdi Intelligent Home Furnishing Technology Co., Ltd. Address: 2F,Building 5th, Rong TaiJia Industrial Area, LiSongLang,GongMing Town,ShenZhen. Product Name: EC-AS602 Bluetooth Speaker Model Number: EC-AS602-001,EC-AS602-0**/EC-AS602-1**/EC-AS602-2**/EC- AS602-3**/EC-AS603-***（*=0-9,representing different sales customers and regions, without affecting product safety and electromagnetic compatibility performance） FCC Identifier: 2BG4G-EC-AS602 We authorize LGAI Technological Center S.A., Ronda de la Font del Carme, s/n, 08193 Bellaterra, Spain, to act on our behalf on all matters concerning the above named equipment. Any individual within LGAI Technological Center S.A. is authorized to act on our behalf and take action on the application. We declare that authorize LGAI Technological Center S.A., Ronda de la Font del Carme, s/n, 08193 Bellaterra, Spain, is allowed to forward all information related to the approval project to the Federal Communication Commission and to discuss any issues concerning the approval application. Any and all acts carried out by LGAI Technological Center S.A. on our behalf shall have the same effect as acts of our own. Name: Dandan Shen Date: 2024.8.15 Title: Manager Signature of applicant:

C5266091_X10_Ed.2 1/1 Shenzhen yikongdi Intelligent Home Furnishing Technology Co., Ltd. Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 Date: 2024.8.15 Subject: Request for Confidentiality FCC ID: 2BG4G-EC-AS602 To Whom It May Concern, Pursuant to the provisions of Sections 0.457 and 0.459 of Commission's rules (47CFR0.457, 0.459), we are requesting the Commission to withhold the following attachment(s) as confidential document from public disclosure. 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 NOTE 1: Long-Term Confidentiality may be permitted under special conditions (See II. LONG-TERM CONFIDENTIALITY, Section 3 of KDB 726920, use last in force) NOTE 2: Short-Term Confidentiality can be requested for a maximum of 180 days from the date of the grant. 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. In case of short-term Confidentiality, the applicant requests the exhibits selected above are withheld from public view for a period of _180_ days from the date of the Grant of Equipment Authorization and prior to marketing. It is our understanding that all measurement test reports, FCC ID label format and correspondent during certification review process cannot be granted as confidential documents and those information will be available for public review once the grant of equipment authorization is issued. ☐ C5266091_X10_Ed.2 1/1 Sincerely, Signature: Name: Dandan Shen Title: Manager

1 / 1 铭牌长40mm 宽20 mm Label

FCC ID: 2BG4G-EC-AS602 RF Exposure Evaluation Limits According to 447498 D01 General RF Exposure Guidance v06 The criteria listed in the following table shall be used to evaluate the environment impact of human exposure to radio frequency (RF) radiation as specified in 1.1307(b) Limits for Maximum Permissible Exposure (MPE) Frequency range (MHz) Electric field strength (V/m) Magnetic field strength (A/m) Power density (mW/cm 2 ) Averaging time (minutes) (A) Limits for Occupational/Controlled Exposures 0.3–3.0 614 1.63 *(100) 6 3.0–30 1842/f 4.89/f *(900/f 2 ) 6 30–300 61.4 0.163 1.0 6 300–1500 f/300 6 1500–100,000 5 6 (B) Limits for General Population/Uncontrolled Exposure 0.3–1.34 614 1.63 *(100) 30 1.34–30 824/f 2.19/f *(180/f 2 ) 30 30–300 27.5 0.073 0.2 30 300–1500 f/1500 30 1500–100,000 1.0 30 f = frequency in MHz Friis transmission formula: Pd = (Pout*G)/(4*pi*r 2 ) Where Pd = power density in mW/cm 2 , Pout = output power to antenna in mW; G = gain of antenna in linear scale, Pi = 3.1416; R = distance between observation point and center of the radiator in cm Pd id the limit of MPE, 1 mW/cm 2 . If we know the maximum gain of the antenna and the total power input to the antenna, through the calculation, we will know the distance r where the MPE limit is reached. Test Procedure Software provided by client enabled the EUT to transmit and receive data at lowest, middle and highest channel individually. FCC ID: 2BG4G-EC-AS602 Test Result of RF Exposure Evaluation The source of the evaluation data results is based on the test report ET-24060829E BT Antenna gain=1.08dBi FOR BT Mode Output power (dBm) Output power (mW) Numeric antenna gain Power Density at R=20cm (mW/cm 2 ) Limit (mW/cm 2 ) Result GFSK 0.26 1.06 1.28 0.00027 1.0 PASS π/4-DQPSK -0.53 0.89 1.28 0.00023 1.0 PASS 8DPSK 0.65 1.16 1.28 0.00030 1.0 PASS

Report No.: ET-24060829E This test report is valid for the tested samples only. It cannot be reproduced except in full without prior written consent of Shenzhen ETR Standard Technology Co., Ltd. TEST REPORT Applicant: Shenzhen yikongdi Intelligent Home Furnishing Technology Co., Ltd. Address of Applicant: 2F,Building 5th, Rong TaiJia Industrial Area, LiSongLang,GongMing Town,ShenZhen Manufacturer: Shenzhen yikongdi Intelligent Home Furnishing Technology Co., Ltd. Address of Manufacturer: 2F,Building 5th, Rong TaiJia Industrial Area, LiSongLang,GongMing Town,ShenZhen Product Name: EC-AS602 Bluetooth Speaker Model No.: EC-AS602-001,EC-AS602-0**/EC-AS602-1**/EC-AS602-2**/EC-AS602- 3**/EC-AS603-***（*=0-9,representing different sales customers and regions, without affecting product safety and electromagnetic compatibility performance） Trade Mark: N/A FCC ID: 2BG4G-EC-AS602 Applicable standards: FCC CFR Title 47 Part 15 Subpart C Section 15.247 Date of Test: Jun.29, 2024-Aug.20, 2024 Date of report issued: Aug.21, 2024 Remark: The results shown in this test report refer only to the sample(s) tested , this test report cannot be reproduced, except in full without prior written permission of the company. The report would be invalid without specific stamp of test institute and the signatures of compiler and approver Prepared By Shenzhen ETR Standard Technology Co., Ltd. Address: No.103, No.10, Phase I, Zone 3, Xinxing Industrial Park, Xinhe, Fuhai Street, Bao'an District, Shenzhen, Guangdong, China Compiled by: Reviewed by: Approved by: Project Engineer Project Manager Authorized Signature - Page 2 of 50 - Report No.: ET-24060829E Report Revision History Report No. Description Issue Date ET-24060829E Original Aug.21, 2024 - Page 3 of 50 - Report No.: ET-24060829E Tel:(86-755) 85259392 Email:[email protected] Web: www.etrlab.cn No.103, No.10, Phase I, Zone 3, Xinxing Industrial Park, Xinhe, Fuhai Street, Bao'an District, Shenzhen, Guangdong, China Contents Page 1 TEST SUMMARY ......................................................................................................................................4 2 GENERAL INFORMATION .......................................................................................................................5 2.1 GENERAL DESCRIPTION OF EUT ..........................................................................................................5 2.2 TEST MODE .........................................................................................................................................7 2.3 DESCRIPTION OF SUPPORT UNITS ........................................................................................................7 2.4 DEVIATION FROM STANDARDS ..............................................................................................................7 2.5 ABNORMALITIES FROM STANDARD CONDITIONS ....................................................................................7 2.6 TEST FACILITY.....................................................................................................................................7 2.7 TEST LOCATION...................................................................................................................................7 2.8 ADDITIONAL INSTRUCTIONS ..................................................................................................................7 3 TEST INSTRUMENTS LIST ......................................................................................................................8 4 TEST RESULTS AND MEASUREMENT DATA .......................................................................................9 4.1 ANTENNA REQUIREMENT ......................................................................................................................9 4.2 CONDUCTED EMISSIONS ....................................................................................................................10 4.3 CONDUCTED PEAK OUTPUT POWER ...................................................................................................13 4.4 20DB EMISSION BANDWIDTH ..............................................................................................................14 4.5 CARRIER FREQUENCIES SEPARATION .................................................................................................18 4.6 HOPPING CHANNEL NUMBER .............................................................................................................22 4.7 DWELL TIME ......................................................................................................................................24 4.8 BAND EDGE.......................................................................................................................................29 4.8.1 Conducted Emission Method ......................................................................................................29 4.8.2 Radiated Emission Method .........................................................................................................36 4.9 SPURIOUS EMISSION .........................................................................................................................38 4.9.1 Conducted Emission Method ......................................................................................................38 4.9.2 Radiated Emission Method .........................................................................................................42 5 TEST SETUP PHOTO .............................................................................................................................50 6 EUT CONSTRUCTIONAL DETAILS .......................................................................................................50 - Page 4 of 50 - Report No.: ET-24060829E Tel:(86-755) 85259392 Email:[email protected] Web: www.etrlab.cn No.103, No.10, Phase I, Zone 3, Xinxing Industrial Park, Xinhe, Fuhai Street,…

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1 1. Antenna introduction The Bluetooth module antenna is directly used on the PCB board. 2.Antenna configuration Unit：mm 2 3.Antenna Information The Bluetooth antenna operates at 2402-2480 MHZ, and resonates in this band. The following table shows the main parameters of the antenna. Manufacturer :Shenzhen yikongdi Intelligent Home Furnishing Technology Co., Ltd. Frequency(MHz) 2402 ~ 2480 MHz VSWR ≤ 1.92 Impedance 50 Ohm Nominal Return Loss -10 dB Max Radiation Omni-directional Gain (Peak) 1.08443dBi Polarization Linear,Vertical Admitted Power 2W Connector Tin 3 4.Antenna gain detection Spectrum Detector: PK Test Date : June 8, 2013 Test By: An d y Temperature : 28°C Test Result: PASS Humidity : 55 % Modulation: GFSK Frequency VNA (MHz) E Total. dB(dB) 2400MHz 0.0403503 2410MHz 0.0886264 2420MHz 0.267381 2430MHz 0.193012 2440MHz 0.26366 2450MHz 0.0723139 2460MHz 0.36895 2470MHz 0.551525 2480MHz 0.640702 2490MHz 1.05232 2500MHz 1.08443 4 PHI 0° 5 PHI 90° 6 THETA 90° 7