2A3RB-CP101Chessnut Pro Chess Set

FCC Information and Copyright This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in 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 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. 15.19 Labelling requirements. 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 operation. changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. FCC RF warning statement: the device has been evaluated to meet general RF exposure requirement , The device can be used in portable exposure condition without restriction.

1/1 TO: Office Feder 7435 Colum The telec o on th detai Appl Compa Grante FCC ID Contac Addres Distric Telep h Fax N Email i. ii Dat e Appl Title Si gna 1 The C Comm partic u e of Enginee ral Commun 5 Oakland Mi mbia, MD 21 Commission ommunicatio he Commissio ls. This Attes icant any name: ee code: D: ct Name: ss: t, Shenzhen, C h hone No: No: l: . [She equip proh 2.90 3 . [She the d Cove must e: 2023-05- icant’s Nam : Manager ature Commission’s Co ission’s website ular entities, tha ering Techno ications Com lls Road 1046 n adopted ons equipmen on’s Covered station State Shenzhen 2A3RB 2A3RB-CP1 0 Lyon Li 506 Room, hina 0755-2730 7 / Brown.lu@at enzhen ELE pment for ibited from 3 of the FC enzhen ELE date of the f ered List a t sign this c -05 me: Shenzhe overed List is p e. This Covered at constitutes “c “Attesta ology mmission rules that nt and video List 1 , which ment is to c o ELET Techno 01 building A, w e 154 tek.org.cn ET Technol which auth receiving C rules. Th ET Technolo filing of the s an entit y ertification. en ELET Tech published by th d List, which is overed” equip m ation Stat prohibit e surveillance is periodica onfirm that w ology Co.,Ltd enle Industrial logy Co.,Lt horization is an equipm e applicant ogy Co.,Ltd application y producing hnology Co.,L e Public Safety periodically up ment. https://ww tements” equipment e equipment lly updated. we follow the d. Zone, Longzh u td.] (“the a s sought is ment authori must sign t d.] (“the app n, the applic g “covered” Ltd. y and Homeland pdated, identifie ww.fcc.gov/supp C5 authorizatio produced b y See the Cov e Section 2.9 u community, X pplicant”) c s not “cove ization purs this certifica plicant”) cer cant [is not] equipmen d Security Bure es particular eq plychain/covere 266091_X24 n for “cov y entities iden vered List for 11(d)(5)(i)-( Xixiang street, certifies tha ered” equip suant to se ation. rtifies that, identified o t. The app eau and posted uipment, prod u dlist 4_Ed.1 vered” ntified r more (ii) Bao'an at the pment ection as of on the plicant on the uced by

Shenzhen ELET Technology Co.,Ltd. Product Similarity Declaration Product name: Chessnut Pro Chess Set Model name: CP100, CP101, CP102, CP103, CP104 FCC ID/ISED: 2A3RB-CP101 We (Shenzhen ELET 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 name and color. Demonstrate the detail(descriptions and pictures) as to the difference list above. Signature: Name: : Lyon Li Date: 2023-05-05 Title: Manager Signature of applicant:

1/1 Com Add Xixia Prod Mod FC C We a 0819 abov Any beh a We d Carm relat to d carri same Na m Titl e Si gn mpany: S dress: 506 ang street, duct Nam del Numb C Identifie authorize L 93 Bellater ve named e individual alf and tak declare tha me, s/n, 0 ted to the discuss any ied out by e effect as me: Lyon Li e: Manager nature of S Shenzhen E 6 Room, bu Bao'an Di me: Ches er: CP10 er: 2A3R LGAI Tech rra, Spain, equipment within LGA ke action on at authoriz 08193 Bel approval p y issues c y LGAI Te s acts of ou r applicant Letter o Shenzhen EL ELET Tech uilding A, w istrict, She ssnut Pro C 00, CP101 RB-CP101 nolo gical C , to act o t. AI Technol n the appli ze LGAI Te laterra, Sp project to concerning echnologica ur own. D t: of Auth LET Techno hnology Co wenle Indu enzhen, Ch Chess Set , CP102, C Center S.A on our beh logical Cen cation. echnologica pain, is a the Feder the app r al Center S Date: 2023-0 horizati ology Co.,Lt o.,Ltd. ustrial Zone hina CP103, CP ., Ronda d half on all nter S.A. is al Center S llowed to al Commu oval appli c S.A. on ou 05-05 C ion d. e, Longzhu P104 de la Font d matters c s authorize S.A., Ronda forward nication C cation. An ur behalf C5266091_X8 u communi del Carme, concerning d to act on a de la Fon all inform ommission ny and all shall have 8_Ed.1 ty, , s/n, g the n our nt del ation n and acts e the

C5266091_X10_Ed.2 1/1 Shenzhen ELET Technology Co.,Ltd. Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 Date: 2023-05-05 Subject: Request for Confidentiality FCC ID: 2A3RB-CP101 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 ______ 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. 1/1 Sinc e Nam Title Sign erely, me: : Lyon L e: Manager nature of Li r applican t Date: 20 t: 023-05-05 C5266091_X100_Ed.2

Page 1 of 5 External Photo Page 2 of 5 Page 3 of 5 Page 4 of 5 Label&location Page 5 of 5 ------End------

FCC ID LABELING AND LOCATION FCC ID Label Chessnut Pro Chess Set Model NO.: CP100 FCC ID: 2A3RB-CP101 FCC ID Label Location The label shown shall be permanently affixed at a conspicuous location on the device and be readily visible to the user at the time purchase (Labeling requirements per 2.925)

Page 1 of 10 Internal Photo Page 2 of 10 Page 3 of 10 Page 4 of 10 Page 5 of 10 Page 6 of 10 Page 7 of 10 Page 8 of 10 Page 9 of 10 Page 10 of 10 ------End------ PCB antenna

RF Exposure evaluation FCC ID: 2A3RB-CP101 According to 447498 D01 General RF Exposure Guidance v05 The 1-g 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 eirp = pt x gt = (EXd) 2 /30 where: pt = transmitter output power in watts, gt = numeric gain of the transmitting antenna (unitless), E = electric field strength in V/m, --- 10 ((dBuV/m)/20) /10 6 d = measurement distance in meters (m)---3m So pt = (EXd) 2 /30 x gt BLE Field strength = 79.87dBuV/m @3m Ant gain =1.50 dBi ;so Ant numeric gain= 1.41 So pt={ [10 (79.87/20) /10 6 x3] 2 /30x1.41 }x1000 mW =0.0410mW So (0.0410mW/5mm)x √2.402GHz = 0.0127<3 Then SAR evaluation is not required

Report No.: TW2304179E Applicant: Shenzhen ELET Technology Co.,Ltd Product: Chessnut Pro Chess Set Model No.: CP100, CP101, CP102, CP103, CP104 Trademark: Chessnut Test Standards: FCC Part 15.249 Test result: It is herewith confirmed and found to comply with the requirements set up by ANSI C63.10 &FCC Part 15 Subpart C, Paragraph 15.249 regulations for the evaluation of electromagnetic compatibility Approved By Terry Tang Manager Dated: April 27, 2023 Results appearing herein relate only to the sample tested The technical reports is issued errors and omissions exempt and is subject to withdrawal at SHENZHEN TIMEWAY TESTING LABORATORIES Zone C, 1st Floor, Block B, Jun Xiang Da Building, Zhongshan Park Road West, Tong Le Village, Nanshan District, Shenzhen, China Tel (755) 83448688, Fax (755) 83442996, E-Mail:[email protected] Report No.: TW2304179E Page 2 of 49 Date: 2023-04-27 The report refers only to the sample tested and does not apply to the bulk. This report is issued in confidence to the client and it will be strictly treated as such by the SHENZHEN TIMEWAY TESTING LABORATORIES. It may not be reproduced rather in its entirety or in part and it may not be used for adverting. The client to whom the report is issued may, however, show or send it . or a certified copy there of prepared by the SHENZHEN TIMEWAY TESTING LABORATORIES. to his customer. Supplier or others persons directly concerned. SHENZHEN TIMEWAY TESTING LABORATORIES. will not, without the consent of the client enter into any discussion of correspondence with any third party concerning the contents of the report. In the event of the improper use of the report. The SHENZHEN TIMEWAY TESTING LABORATORIES. reserves the rights to withdraw it and to adopt any other remedies which may be appropriate. Special Statement： The testing quality ability of our laboratory meet with "Quality Law of People's Republic of China" Clause 19. The testing quality system of our laboratory meet with ISO/IEC-17025 requirements, which is approved by CNAS. This approval result is accepted by MRA of APLAC. Our test facility is recognized, certified, or accredited by the following organizations: CNAS-LAB Code: L2292 The EMC Laboratory has been assessed and in compliance with CNAS-CL01 accreditation criteria for testing Laboratories (identical to ISO/IEC 17025:2017 General Requirements) for the Competence of testing Laboratories. FCC-Registration No.: 744189 The EMC Laboratory has been registered and fully described in a report filed with the (FCC) Federal Communications commission. The acceptance letter from the FCC is maintained in our files. Registration No.: 744189. Industry Canada (IC) —Registration No.:5205A The EMC Laboratory has been registered by Certification and Engineering Bureau of Industry Canada for radio equipment testing with Registration No.: 5205A. A2LA (Certification Number:5013.01) The EMC Laboratory has been accredited by the American Association for Laboratory Accreditation (A2LA). Certification Number:5013.01 Report No.: TW2304179E Page 3 of 49 Date: 2023-04-27 The report refers only to the sample tested and does not apply to the bulk. This report is issued in confidence to the client and it will be strictly treated as such by the SHENZHEN TIMEWAY TESTING LABORATORIES. It may not be reproduced rather in its entirety or in part and it may not be used for adverting. The client to whom the report is issued may, however, show or send it . or a certified copy there of prepared by the SHENZHEN TIMEWAY TESTING LABORATORIES. to his customer. Supplier or others persons directly concerned. SHENZHEN TIMEWAY TESTING LABORATORIES. will not, without the consent of the client enter into any discussion of correspondence with any third party concerning the contents of the report. In the event of the improper use of the report. The SHENZHEN TIMEWAY TESTING LABORATORIES. reserves the rights to withdraw it and to adopt any other remedies which may be appropriate. Test Report Conclusion Content 1.0 General Details ............................................................................................... 4 1.1 Test Lab Details............................................................................................... 4 1.2 Applicant Details.............................................................................................. 4 1.3 Description of EUT .......................................................................................... 4 1.4 Submitted Sample............................................................................................. 4 1.5 Test Duration................................................................................................... 5 1.6 Test Uncertainty................................................................................................ 5 1.7 Test By......................................................................................................... 5 2.0 List of Measurement Equipment......................................................................... 6 3.0 Technical Details............................................................................................. 7 3.1 Summary of Test Results.................................................................................... 7 3.2 Test Standards................................................................................................. 7 4.0 EUT Modification........................................................................................... 7 5.0 Power Line Conducted Emission Test.................................................................. 8 5.1 Schematics of the Test....................................................................................... 8 5.2 Test Method and Test Procedure............................................................................ 8 5.3 Configuration of the EUT................................................................................... 8 5.4 EUT Operating Conditi…

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深圳市易联易通科技有限公司 产品承认书 产品 P/N： CP100-001 产品描述： CP100天线 C2 10PF C3NC R1 10PF C113PF L2 1.5NH L13.9NH Frequency(MHz)EfficiencyAverage gain Requirement(dBi)ResultPeak gainRequirementResult 2400 38.87%-3.261.36 2410 38.88%-3.161.39 2420 39.44%-3.131.45 2430 40.35%-3.081.44 2440 40.12%-3.051.46 2450 40.32%-2.991.49 2460 40.66%-2.981.44 2470 40.43%-2.961.47 2480 40.34%-2.941. 2490 40.76%-2.971.49 2500 40.79%-2.991. 5 0 Frequency(MHz)EfficiencyAverage gain Requirement(dBi)ResultPeak gainRequirementResult 2400 38.57%-3.411.35 2410 39.88%-3.211.39 2420 40.11%-3.171.45 2430 40.75%-3.121.46 2440 40.62%-3.031.46 2450 40.82%-3.021.46 2460 40.76%-3.031.45 2470 40.86%-3.021.48 2480 40.94%-3.011. 2490 40.92%-3.021.49 2500 40.86%-3.111.50 Print PCB Antenna 2# 1. Efficiency&Gain 2. Radiated pattern E1E2H Print PCB Antenna 1# 1. Macting & Photo 2. Efficiency&Gain 3. Radiated pattern E1E2H Element C5 Value 1.5PF 5 0 05

Report No.: TW2304179E Test setup photo Radiated Emission Test Setup Radiated Emission Test Setup Report No.: TW2304179E Conducted Emission Test Setup