2AAOE25K105A2 in 1 Wireless Keypad & Calculator

Shenzhen B&W Electronics Development Limited Covered Equipment Certification Attestation Letter 10/29/2025 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA ATTN.: Reviewing Engineer FCC ID: 2AAOE25K105A Shenzhen B&W Electronics Development 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. Note: If the equipment for which the applicant seeks authorization is produced by any of the entities identified on the current Covered List, the applicant should include an explanation on why the equipment is not “covered” equipment. Shenzhen B&W Electronics Development 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 a specifically named entity or any of its subsidiaries or affiliates) as an entity producing “covered” equipment. Shenzhen B&W Electronics Development Limited (“the applicant”) certifies that the equipment for which authorization is sought does not include cybersecurity or anti-virus software produced or provided by Kaspersky Lab, Inc. or any of its successors and assignees, including equipment with integrated Kaspersky Lab, Inc. (or any of its successors and assignees) cybersecurity or anti-virus software pursuant to DA-24-886 and KDB 986446 D01 Covered Equipment Guidance section B(2a). Signed: Printed name: Eddie Zhang Title: Manager Company Name: Shenzhen B&W Electronics Development Limited Date: 10/29/2025

Shenzhen B&W Electronics Development Limited * the applicant must designate a contact located in the United States for purposes of acting as the appl icant’s agent for service of process, regardless of whether the applicant is a domestic or forei gn ent ity. An applicant located in the United States may designate itself as the agent for service of process. U.S. Agent Designation for Service of Process - Certification Attestation Letter 10/29/2025 TO: Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 ATTN.: Reviewing Engineer FCC ID: 2AAOE25K105A FRN of applicant: 0022850218 Per section 2.911(d)(7) of the FCC rules, [Shenzhen B&W Electronics Development Limited] (“the applicant”) certifies that the equipment for which authorization is sought is designated to the following U.S. agent* for service of process: Company Name: FCC US Agent, LLC FCC Registration Number (FRN): 0033402884 Physical U.S. Company Address: 3722 Illinois Avenue, Saint Charles, IL 60174, USA Contact Person: Tim Payne Agent Email Address: [email protected] The above contact person accepts the obligation for service of process. The applicant 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. Applicant Signed: Agent Signed (if different from Applicant): Signed: Printed name: Eddie Zhang Title: Manager Company Name: Shenzhen B&W Electronics Development Limited Date: 10/29/2025 Signed: Printed name: Tim Payne Title: Manager Company Name: FCC US Agent, LLC Date: 10/29/2025

DATE 10/29/2025 Equipment Autorisation Division Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 FCC ID: ___ 2AAOE25K105A ______ Product Name: ___ 2 in 1 Wireless Keypad & Calculator___ Request for Confidentiality Pursuant to Sections 0.457 and 0.459 of the commission’s rules, we hereby request that the following documents be held confidential: (List here the documents for which you are seeking confidentiality – for example ...) • 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. Printed name: Eddie Zhang Title: Manager Company Name: Shenzhen B&W Electronics Development Limited Date: 10/29/2025

DATE : 10/29/2025 Equipment Autorisation Division Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 FCC ID: 2AAOE25K105A Product Name: 2 in 1 Wireless Keypad & Calculator Request for Short-Term Confidentiality Pursuant to Sections 0.457 and 0.459 of the commission rules, and in accordance with the FCC Public notice dated June 15, 2004 (DA 04-1705), we hereby request short-term confidentiality for the following items prior to marketing the device.:  Test Setup Photos  External Photos  Internal Photos  User Manual The applicant requests the exhibits selected above as short term confidential be withheld from public view for a period of 180 days from the date of the Grant of Equipment Authorization and prior to marketing. This is to avoid premature release of sensitive information prior to marketing or release of the product to the public. Printed name: Eddie Zhang Title: Manager Company Name: Shenzhen B&W Electronics Development Limited Date: 10/29/2025

DATE: 10/29/2025 Federal Communications Commission Authorization & Evaluation Division 7345 Oakland Mills Road Columbia, Maryland 21046 Authority to Act as Agent On our behalf, I appoint Shenzhen EU Testing Laboratory Limited (101, Building B1, Fuqiao Fourth Area, Qiaotou Community Fuhai Subdistrict Baoan District,Shenzhen,China) (Name of Agent company name and address) to act as our agent in the preparation of this application for equipment certification. I certify that submitted documents properly describe the device or system for which equipment certification is sought. I also certify that each unit manufactured, imported or marketed, as defined in the Federal Communications Commission’s regulations will have affixed to it a label identical to that submitted for approval with this application. For instances where our authorized agent signs the application for certification on our behalf, I acknowledge that all responsibility for complying with the terms and conditions for certification, still resides with Shenzhen B&W Electronics Development Limited (3/F, Building B, Heshengjia Industrial Park, No.154 Huating Road, Dalang Street, Longhua District, Shenzhen, China) (Applicant Name and address) Printed name: Eddie Zhang Title: Manager Company Name: Shenzhen B&W Electronics Development Limited Date: 10/29/2025

Date 10/29/2025 Federal Communications Commission Authorization & Evaluation Division 7345 Oakland Mills Road Columbia, Maryland 21046 RE: LETTER OF AGENT AUTHORIZATION To Whom It May Concern: We, the undersigned, hereby authorize Compliance Testing, LLC 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). Sincerely, Printed name: Eddie Zhang Title: Manager Company Name: Shenzhen B&W Electronics Development Limited Date: 10/29/2025

Label Location On EUT Label

RF EXPOSURE EVALUATION FCC ID: 2AAOE25K105A According to KDB 447498 D01 General RF Exposure Guidance v06 and FCC 1.1310: 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): Routine SAR evaluation refers to that specifically required by §2.1093, using measurements or computer simulation. When routine SAR evaluation is not required, portable transmitters with output power greater than the applicable low threshold require SAR evaluation to qualify for TCB approval. Channel (MHz) Maximum output power (dBm) Tune up tolerance (dBm) Max Tune Up Power (dBm) Distance (mm) Calculation results Limit Operating Mode 2402 -0.26 -0.26±1 0.74 5 0.368 3 BLE 2440 -0.70 -0.70±1 0.30 5 0.335 3 2480 -2.16 -2.16±1 -1.16 5 0.241 3 Test Results: PASS.

Summary AntennaSpecification ITEMANTSPEC ModelName2.4GANT Center Frequency HorizontalVertical 2402MHz2441MHz2480MHz2402MHz2441MHz2480MHz -1.26-0.76-0.58-5.25-2.46-1.86 MAX.Gain-0.58dBi PolarizationHorizontalandVertical AzimuthBeam Pattern Omni-directional Impedance50Ohm AntennaLength38.20mm ManufactureShenzhenjiaxinchenTechnologyCo.,Ltd AntennaPhoto&Length(mm) Address Building C, No. 30, Sanwei Aviation Road, Sanwei Community, Hangcheng Subdistrict, Bao'an District, Shenzhen Horizontal:2402 MHz 2441 MHz 2480 MHz Power(dBm) Max: 0 Min: -40 Sca le: 5/div Fre quency (MHz) Gain(d Bi) MaxMinAvg 2402-1 .26174-30.0801-7.18716 2441-0 .765802-36.5604-7.48023 2480-0 .585582-22.0315-6.59127 Vertical:2402 MHz 2441 MHz 2480 MHz Power (dBm) Max: 0 Min: -30 Sca le: 5/div Fre quency (MHz) Gain(d Bi) MaxMinAvg 2402-5 .2537-2 2.1424-1 2.4294 2441-2 .4652-2 4.5837-1 0.4702 2480-1 .86120-29.5214-9.20432 ANT Test Labs：AttestationofGlobal Compl ianc e Co.,Ltd.

Page 1 of 23 Report No.: 8335EU011002W-AD ANNEX D TEST DATA For Project No.: 8335EU011002W Client: Shenzhen B&W Electronics Development Limited Product Description: 2 in 1 Wireless Keypad & Calculator Model No.: K105A FCC ID: 2AAOE25K105A Technology: Bluetooth BLE Test Engineer: Test Date: 2025-10-20 Page 2 of 23 Report No.: 8335EU011002W-AD Test Summary Item Result Duty Cycle Pass Bandwidth Pass Maximum Conducted Output Power Pass Maximum Power Spectral Density Pass Unwanted Emissions In Non-restricted Frequency Bands Pass Unwanted Emissions In Restricted Frequency Bands Pass Page 3 of 23 Report No.: 8335EU011002W-AD 1. Duty Cycle 1.1 Test Result 1.1.1 Ant1 Ant1 Mode TX Type Frequency (MHz) T_on (ms) Period (ms) Duty Cycle (%) Duty Cycle Correction Factor (dB) Max. DC Variation (%) 1M SISO 2402 0.272 0.625 43.52 3.61 0.00 Page 4 of 23 Report No.: 8335EU011002W-AD 1.2 Test Graph 1.2.1 Ant1 1M_LCH_2402MHz_Ant1_NTNV Page 5 of 23 Report No.: 8335EU011002W-AD 2. Bandwidth 2.1 Test Result 2.1.1 OBW Mode TX Type Frequency (MHz) ANT 99% Occupied Bandwidth (MHz) Verdict Result Limit 1M SISO 2402 1 1.017 / Pass 2440 1 1.017 / Pass 2480 1 1.022 / Pass 2.1.2 6dB BW Mode TX Type Frequency (MHz) ANT 6dB Bandwidth (MHz) Verdict Result Limit 1M SISO 2402 1 0.678 >=0.5 Pass 2440 1 0.677 >=0.5 Pass 2480 1 0.687 >=0.5 Pass Page 6 of 23 Report No.: 8335EU011002W-AD 2.2 Test Graph 2.2.1 OBW 1M_LCH_2402MHz_Ant1_NTNV 1M_MCH_2440MHz_Ant1_NTNV Page 7 of 23 Report No.: 8335EU011002W-AD 1M_HCH_2480MHz_Ant1_NTNV Page 8 of 23 Report No.: 8335EU011002W-AD 2.2.2 6dB BW 1M_LCH_2402MHz_Ant1_NTNV 1M_MCH_2440MHz_Ant1_NTNV Page 9 of 23 Report No.: 8335EU011002W-AD 1M_HCH_2480MHz_Ant1_NTNV Page 10 of 23 Report No.: 8335EU011002W-AD 3. Maximum Conducted Output Power 3.1 Test Result 3.1.1 Power Mode TX Type Frequency (MHz) Maximum Peak Conducted Output Power (dBm) Verdict ANT1 Limit 1M SISO 2402 -0.26 <=30 Pass 2440 -0.70 <=30 Pass 2480 -2.16 <=30 Pass Page 11 of 23 Report No.: 8335EU011002W-AD 4. Maximum Power Spectral Density 4.1 Test Result 4.1.1 PSD Mode TX Type Frequency (MHz) Maximum PSD (dBm/3kHz) Verdict ANT1 Limit 1M SISO 2402 -16.39 <=8 Pass 2440 -17.04 <=8 Pass 2480 -17.57 <=8 Pass Page 12 of 23 Report No.: 8335EU011002W-AD 4.2 Test Graph 4.2.1 PSD 1M_LCH_2402MHz_Ant1_NTNV 1M_MCH_2440MHz_Ant1_NTNV Page 13 of 23 Report No.: 8335EU011002W-AD 1M_HCH_2480MHz_Ant1_NTNV Page 14 of 23 Report No.: 8335EU011002W-AD 5. Unwanted Emissions In Non-restricted Frequency Bands 5.1 Test Result 5.1.1 Ref Mode TX Type Frequency (MHz) ANT Level of Reference (dBm) 1M SISO 2402 1 -1.94 2440 1 -1.53 2480 1 -2.11 Note1: Refer to FCC Part 15.247 (d) and ANSI C63.10-2020, the channel contains the maximum PSD level was used to establish the reference level. 5.1.2 CSE Mode TX Type Frequency (MHz) ANT Level of Reference (dBm) Limit (dBm) Verdict 1M SISO 2402 1 -1.94 -21.94 Pass 2440 1 -1.53 -21.53 Pass 2480 1 -2.11 -22.11 Pass Note1: Refer to FCC Part 15.247 (d) and ANSI C63.10-2020, the channel contains the maximum PSD level was used to establish the reference level. Page 15 of 23 Report No.: 8335EU011002W-AD 5.2 Test Graph 5.2.1 Ref 1M_LCH_2402MHz_Ant1_NTNV 1M_MCH_2440MHz_Ant1_NTNV Page 16 of 23 Report No.: 8335EU011002W-AD 1M_HCH_2480MHz_Ant1_NTNV Page 17 of 23 Report No.: 8335EU011002W-AD 5.2.2 CSE 1M_LCH_2402MHz_Ant1_NTNV 1M_LCH_2402MHz_Ant1_NTNV Page 18 of 23 Report No.: 8335EU011002W-AD 1M_LCH_2402MHz_Ant1_NTNV 1M_LCH_2402MHz_Ant1_NTNV Page 19 of 23 Report No.: 8335EU011002W-AD 1M_LCH_2402MHz_Ant1_NTNV 1M_MCH_2440MHz_Ant1_NTNV Page 20 of 23 Report No.: 8335EU011002W-AD 1M_MCH_2440MHz_Ant1_NTNV 1M_MCH_2440MHz_Ant1_NTNV Page 21 of 23 Report No.: 8335EU011002W-AD 1M_MCH_2440MHz_Ant1_NTNV 1M_HCH_2480MHz_Ant1_NTNV Page 22 of 23 Report No.: 8335EU011002W-AD 1M_HCH_2480MHz_Ant1_NTNV 1M_HCH_2480MHz_Ant1_NTNV Page 23 of 23 Report No.: 8335EU011002W-AD 1M_HCH_2480MHz_Ant1_NTNV 1M_HCH_2480MHz_Ant1_NTNV --------- End of Report -------

TEST REPORT Report No.: 8335EU011002W Applicant: Shenzhen B&W Electronics Development Limited Address: 3/F, Building B, Heshengjia Industrial Park, No.154 Huating Road, Dalang Street, Longhua District, Shenzhen, China Product Name: 2 in 1 Wireless Keypad & Calculator Model No.: K105A Trademark: N/A FCC ID: 2AAOE25K105A Test Standard(s): 47 CFR Part 15 Subpart C Test Result: Pass Date of Receipt: Oct. 10, 2025 Test Date: Oct. 10, 2025 – Oct. 21, 2025 Date of Issue: Oct. 24, 2025 ISSUED BY: SHENZHEN EU TESTING LABORATORY LIMITED Prepared by: Reviewed and Approved by: ____________________ _____________________ Mikey Zhu/ Engineer Sally Zhang/ Manager Page 2 of 32 Report No.: 8335EU011002W TRF No.: FCC Part 15 Subpart C_BLE (A02) Revision Record Report Version Issued Date Description Status V0 Oct. 24, 2025 Original Valid Page 3 of 32 Report No.: 8335EU011002W TRF No.: FCC Part 15 Subpart C_BLE (A02) Table of Contents 1 COVER PAGE .................................................................................................................................. 1 2 GENERAL INFORMATION ...................................................................................................................... 5 2.1 APPLICANT INFORMATION .................................................................................................................. 5 2.2 MANUFACTURER INFORMATION .......................................................................................................... 5 2.3 FACTORY INFORMATION ..................................................................................................................... 5 2.4 GENERAL DESCRIPTION OF E.U.T. ..................................................................................................... 5 2.5 TECHNICAL INFORMATION OF E.U.T. .................................................................................................. 6 3 TEST SUMMARY ...................................................................................................................................... 7 3.1 TEST STANDARD ............................................................................................................................... 7 3.2 TEST VERDICT ................................................................................................................................... 7 3.3 TEST LABORATORY ........................................................................................................................... 7 4 TEST CONFIGURATION .......................................................................................................................... 8 4.1 TEST ENVIRONMENT .......................................................................................................................... 8 4.2 TEST EQUIPMENT .............................................................................................................................. 8 4.3 DESCRIPTION OF SUPPORT UNIT ........................................................................................................ 9 4.4 TEST MODE ...................................................................................................................................... 9 4.5 DESCRIPTION OF CALCULATION ......................................................................................................... 9 4.6 MEASUREMENT UNCERTAINTY ......................................................................................................... 10 4.7 DEVIATION FROM STANDARDS ......................................................................................................... 10 4.8 ABNORMALITIES FROM STANDARD CONDITION ................................................................................. 10 5 TEST ITEMS ........................................................................................................................................... 11 5.1 ANTENNA REQUIREMENT .................................................................................................................. 11 5.1.1 Test Requirement ........................................................................................................... 11 5.1.2 Antenna Anti-Replacement Construction ........................................................................ 11 5.1.3 Antenna Gain .................................................................................................................. 11 5.2 CONDUCTED EMISSION AT AC POWER LINE ..................................................................................... 12 5.2.1 Test Requirement ........................................................................................................... 12 5.2.2 Test Setup Diagram ........................................................................................................ 12 5.2.3 Test Procedure ............................................................................................................... 12 5.2.4 Test Data......................................................................................................................... 12 5.3 DTS BANDWIDTH ............................................................................................................................ 12 5.3.1 Test Requirement ........................................................................................................... 15 5.3.2 Test Setup Diagram ........................................................................................................ 15 5.3.3 Test Procedure ............................................................................................................... 15 5.3.4 Test Data......................................................................................................................... 15 5.4 MAXIMUM CONDUCTED OUTPUT POWER .......................................................................................... 16 5.4.1 Test Requirement .............…

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