2AU4P-BTS121Bluetooth Speaker with Power Bank

TennRich International Corp. U.S. Agent Designation for Service of Process (Applicant and U.S. Agent are Separate Parties) TO: Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 ATTENTION: FCC Certification – Section 2.911(d)(7) Information Designated U.S. Agent Company Name: TennRich America Inc. FRN: 0033974395 Contact Name: Mr Jamal Chen Street Address: 3333 S. Brea Canyon Road, #206 Diamond Bar City/Province/Zip: CA 91765 United States Telephone No: (626) 665-4100 Email: [email protected] This letter is to confirm that we (“the Designated U.S. Agent) have accepted the responsibility to act as the Designated U.S. Agent for Service of Process as required by section 47 CFR 2.911(d)(7) on behalf of the Applicant noted below. U.S. Agent Signature: Date: Apr.16.2024 Signed by (Printed Name/Title): Mr Jamal Chen/Sales Manager The Applicant acknowledges that they must maintain an agent for no less than one year after terminating all marketing and importation OR the conclusion of any Commission-related proceeding involving the equipment. The applicant further acknowledges their responsibility to inform the FCC whenever the Designated U.S. Agent information above changes. Applicant Company name: TennRich International Corp. FRN: 0028973394 Grantee Code: 2AU4P FCC ID: 2AU4P-BTS121 Contact Name: Yuna Hung Street Address: 1-3, Alley 5, Lane 305, Sec 1,Shin Nan Road, Lu Chu District,Taoyuan,Taiwan,China Telephone No: 886-3-3124888-1809 Email: [email protected] Applicant Signature: Date: Apr.16.2024 Signed by (Printed Name/Title): Yuna Hung/Certification Commissioner

TennRich International Corp. Address: 1-3, Alley 5, Lane 305, Sec 1,Shin Nan Road, Lu Chu District,Taoyuan,Taiwan,China Date: 2024-04-16 Federal Communications Commission Authorization and Evaluation Division 1435 Oakland Mills Road Columbia, MD 21046 Ref: Attestation Statements Part 2.911(d)(5)(i) Filing SUBJECT: FCC Application for FCC ID: 2AU4P-BTS121 To Whom It May Concern: TennRich International Corp. 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, Signature: Date: 2024-04-15

TennRich International Corp. Address: 1-3, Alley 5, Lane 305, Sec 1,Shin Nan Road, Lu Chu District,Taoyuan,Taiwan,China Date: 2024-04-16 Federal Communications Commission Authorization and Evaluation Division 1435 Oakland Mills Road Columbia, MD 21046 Ref: Attestation Statements Part 2.911(d)(5)(ii) Filing SUBJECT: FCC Application for FCC ID: 2AU4P-BTS121 To Whom It May Concern: TennRich International Corp.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, Signature: Date: 2024-04-15

Inverted F Antenna Specification Summary ANT SPECITEM 2.4G ANTModel Name VerticalHorizontal 2500MHz2400MHz2400MHz2500MHz2400MHz2400MHz Center Frequency -1.86-2.46-5.25-0.58-0.76-1.26 -0.58dBMAX. Gain Horizontal and VerticalPolarization Azimuth Beam Pattern Omni-directional 50 OhmImpedance Antenna Length Manufacture Antenna Photo & Length (mm) TENNRICH INTERNATIONAL CORP. 15.20mm 1-3, Alley 5, Lane 305, Sec 1,Shin Nan Road, Lu Chu District, Taoyuan,Taiwan,China Address Antenna type: PCB Antenna Horizontal: 2400 MHz 2450 MHz 2500 MHz Power (dBm) Max: 0 Min: -40 Scale: 5/div Gain(dB) Frequency (MHz) Max Min Avg 2400 -1.26174 -30.0801 -7.18716 2450 -0.765802 -36.5604 -7.48023 2500 -0.585582 -22.0315 -6.59127 Vertical: 2400 MHz 2450 MHz 2500 MHz Power (dBm) Max: 0 Min: -30 Scale: 5/div Gain(dB) Frequency (MHz) Max Min Avg 2400 -5.2537 -22.1424 -12.4294 2450 -2.4652 -24.5837 -10.4702 2500 -1.86120 -29.5214 -9.20432 ANT Test Labs：Attestation of Global Compliance Co., Ltd.

TennRich International Corp. Date：Apr.17.2024 Product Model Number: BTS121 FCC ID：2AU4P-BTS121 To whom it may concern, Re: Product Certification Representative Authorization Letter We authorize QAI Laboratories Ltd. 3980 North Fraser Way, Burnaby B.C. Canada V5J 5K5 to act on our behalf on all matters concerning the above named equipment. This shall include the following:  Testing  Approval applications and procedures We declare that ORGANIZATION. is allowed to forward all information related to the approval project to the applied certification body and to the notification entities and to discuss any issues concerning the approval application. Any and all acts carried out by ORGANIZATION. on our behalf shall have the same effect as acts of our own. By: Contact Listed on FCC Wesbite Title: Certification Commissioner Email: [email protected] Telephone: 886-3-3124888-1809 On behalf of: TennRich International Corp.

TennRich International Corp. 1-3, Alley 5, Lane 305, Sec 1,Shin Nan Road, Lu Chu District,Taoyuan,Taiwan,China Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Date: April 16, 2024 Subject; Request for Confidentiality FCC ID: 2AU4P-BTS121 To Whom It May Concern, Pursuant to the provisions of the Commission’s rules Title 47 Sections §0.457 and §0.459, we are requesting the Commission to withhold the following attachment(s) as confidential documents from public disclosure indefinitely. These documents contain detailed system and equipment descriptions and are considered as proprietary information in operation of the equipment. The public disclosure of these documents might be harmful to our company and would give competitors an unfair advantage in the market. Schematic Diagram Block Diagram Parts List Operational Description Tune-up Procedure Software Security Requirements for UNII devices In additional to above mentioned documents, in order to comply with the marketing regulations in Title 47 CFR §2.803 and the importation rules in Title 47 CFR §2.1204, while ensuring that business sensitive information remains confidential until the actual marketing of newly authorized devices, we request Short Term Confidentiality of the following attachment(s); External Photos Test Setup Photos Internal Photos User Manual For 45 days, pursuant to Public Notice DA 04-1705. OR For 180 days pursuant to KDB 726920 D01. It is our understanding that all measurement test reports, FCC ID label format and correspondence during the certification review process cannot be granted as confidential documents and this information will be available for public review once the grant of equipment authorization is issued. Sincerely, Signature: Name: Yuna Hung Title: Certification Commissioner

FCC ID: 2AU4P-BTS121 Page 1 of 3 Report No.: CTL2401102093-WF External Photos of EUT FCC ID: 2AU4P-BTS121 Page 2 of 3 Report No.: CTL2401102093-WF FCC ID: 2AU4P-BTS121 Page 3 of 3 Report No.: CTL2401102093-WF

FCC ID: 2AU4P-BTS121 Page 1 of 5 Report No.: CTL2401102093-WF Internal Photos of EUT BT Antenna FCC ID: 2AU4P-BTS121 Page 2 of 5 Report No.: CTL2401102093-WF FCC ID: 2AU4P-BTS121 Page 3 of 5 Report No.: CTL2401102093-WF FCC ID: 2AU4P-BTS121 Page 4 of 5 Report No.: CTL2401102093-WF FCC ID: 2AU4P-BTS121 Page 5 of 5 Report No.: CTL2401102093-WF

FCC ID: 2AU4P-BTS121 Page 1 of 1 Report No.: CTL2401102093-WF RF Exposure evaluation According to 447498 D01 General RF Exposure Guidance v06 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 For Bluetooth BT: pt=-0.2dBm=0.9550mW at 2480MHz So (0.9550mW/5mm)x √2.480GHz = 0.3008<3 BLE: pt=-0.44dBm=0.9036mW at 2440MHz So (0.9036mW/5mm)x √2440GHz = 0.2823<3 Then SAR evaluation is not required.

Shenzhen CTL Testing Technology Co., Ltd. Floor 1-A, Baisha Technology Park, No.3011, Shahexi Road, Nanshan District, Shenzhen, China 518055 Tel: +86-755-89486194 E-mail: [email protected] Page 1 / 55 Annex for BLE Test Report No.: CTL2401102093-WF02 TABLE OF CONTENTS 1. Bandwidth .......................................................................................................................................... 3 1.1 OBW ......................................................................................................................................... 3 1.1.1 Test Result ..................................................................................................................... 3 1.2 20dB BW .................................................................................................................................. 9 1.2.1 Test Result ..................................................................................................................... 9 2. Maximum Conducted Output Power ................................................................................................ 15 2.1 Power ..................................................................................................................................... 15 2.1.1 Test Result ................................................................................................................... 15 3. Carrier Frequency Separation .......................................................................................................... 21 3.1 Ant1 ........................................................................................................................................ 21 3.1.1 Test Result ................................................................................................................... 21 4. Number of Hopping Frequencies ..................................................................................................... 24 4.1 HoppNum ............................................................................................................................... 24 4.1.1 Test Result ................................................................................................................... 24 5. Time of Occupancy (Dwell Time) ..................................................................................................... 27 5.1 Ant1 ........................................................................................................................................ 27 5.1.1 Test Result ................................................................................................................... 27 6. Unwanted Emissions In Non-restricted Frequency Bands ................................................................ 37 6.1 Ref .......................................................................................................................................... 37 6.1.1 Test Result ................................................................................................................... 37 Shenzhen CTL Testing Technology Co., Ltd. Floor 1-A, Baisha Technology Park, No.3011, Shahexi Road, Nanshan District, Shenzhen, China 518055 Tel: +86-755-89486194 E-mail: [email protected] Page 2 / 55 6.2 CSE ........................................................................................................................................ 43 6.2.1 Test Result ................................................................................................................... 43 V1.0 Page 3 of 55 Report No.: CTL2401102093-WF 01 FCC ID:2AU4P-BTS121 Page 3 / 55 1. Bandwidth 1.1 OBW 1.1.1 Test Result Mode TX Type Frequency (MHz) Packet Type ANT 99% Occupied Bandwidth (MHz) Verdict Result Limit GFSK SISO 2402 DH5 1 0.902 / Pass 2441 DH5 1 0.916 / Pass 2480 DH5 1 0.924 / Pass Pi/4DQPSK SISO 2402 2DH5 1 1.191 / Pass 2441 2DH5 1 1.195 / Pass 2480 2DH5 1 1.198 / Pass 8DPSK SISO 2402 3DH5 1 1.193 / Pass 2441 3DH5 1 1.196 / Pass 2480 3DH5 1 1.198 / Pass V1.0 Page 4 of 55 Report No.: CTL2401102093-WF 01 FCC ID:2AU4P-BTS121 Page 4 / 55 1.1.2 Test Graph GFSK_DH5_LCH_2402MHz_Ant1_NTNV GFSK_DH5_MCH_2441MHz_Ant1_NTNV V1.0 Page 5 of 55 Report No.: CTL2401102093-WF 01 FCC ID:2AU4P-BTS121 Page 5 / 55 GFSK_DH5_HCH_2480MHz_Ant1_NTNV Pi/4DQPSK_2DH5_LCH_2402MHz_Ant1_NTNV V1.0 Page 6 of 55 Report No.: CTL2401102093-WF 01 FCC ID:2AU4P-BTS121 Page 6 / 55 Pi/4DQPSK_2DH5_MCH_2441MHz_Ant1_NTNV Pi/4DQPSK_2DH5_HCH_2480MHz_Ant1_NTNV V1.0 Page 7 of 55 Report No.: CTL2401102093-WF 01 FCC ID:2AU4P-BTS121 Page 7 / 55 8DPSK_3DH5_LCH_2402MHz_Ant1_NTNV 8DPSK_3DH5_MCH_2441MHz_Ant1_NTNV V1.0 Page 8 of 55 Report No.: CTL2401102093-WF 01 FCC ID:2AU4P-BTS121 Page 8 / 55 8DPSK_3DH5_HCH_2480MHz_Ant1_NTNV V1.0 Page 9 of 55 Report No.: CTL2401102093-WF 01 FCC ID:2AU4P-BTS121 Page 9 / 55 1.2 20dB BW 1.2.1 Test Result Mode TX Type Frequency (MHz) Packet Type ANT 20dB Bandwidth (MHz) Verdict Result Limit GFSK SISO 2402 DH5 1 1.031 / Pass 2441 DH5 1 1.032 / Pass 2480 DH5 1 1.040 / Pass Pi/4DQPSK SISO 2402 2DH5 1 1.346 / Pass 2441 2DH5 1 1.325 / Pass 2480 2DH5 1 1.328 / Pass 8DPSK SISO 2402 3DH5 1 1.316 / Pass 2441 3DH5 1 1.313 / Pass 2480 3DH5 1 1.313 / Pass V1.0 Page 10 of 55 Report No.: CTL2401102093-WF 01 FCC ID:2AU4P-BTS121 Page 10 / 55 1.2.2 Test Graph GFSK_DH5_LCH_2402MHz_Ant1_NTNV GFSK_DH5_MCH_2441MHz_Ant1_NTNV V1.0 Page 11 of 55 Report No.: CTL2401102093-WF 01 FCC ID:2AU4P-BTS121 Page 11 / 55 GFSK_DH5_HCH_2480MHz_Ant1_NTNV Pi/4DQPSK_2DH5_LCH_2402MHz_Ant1_NTNV V1.0 Page 12 of 55 Report No.: CTL2401102093-WF 01 FCC ID:2AU4P-BTS121 Page 12 / 55 Pi/4DQPSK_2DH5_MCH_2441MHz_Ant1_NTNV Pi/4DQPSK_2DH5_HCH_2480MHz_Ant1_NTNV V1.0 Page 13 of 55 Report No.: CTL2401102093-WF 01 FCC ID:2AU4P-BTS121 Page 13 / 55 8DPSK_3DH5_LCH_2402MHz_Ant1_NTNV 8DPSK_3DH5_MCH_2441MHz_Ant1_NTNV V1.0 Page 14 of 55 Report No.: CTL2401102093-WF 01 FCC ID:2AU4P-BTS121 Page 14 / 55 8DPSK_3DH5_HCH_2480MHz_Ant1_NTNV V1.0 Page 15 of 55 Report…

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Shenzhen CTL Testing Technology Co., Ltd. Tel: +86-755-89486194 E-mail: [email protected] TEST REPORT FCC PART 15.247 Report Reference No.................: CTL2401102093-WF01 Compiled by: ( position+printed name+signature) Happy Guo (File administrators) Tested by: ( position+printed name+signature) Snow Tang (Test Engineer) Approved by: ( position+printed name+signature) Ivan Xie (Manager) Product Name ............................ : Bluetooth Speaker with Power Bank Model/Type reference ................ : BTS121 List Model(s) ............................... : N/A Trade Mark .................................. : Energizer FCC ID ......................................... : 2AU4P-BTS121 Applicant’s name ....................... : TennRich International Corp. Address of applicant ................. : 1-3, Alley 5, Lane 305, Sec 1,Shin Nan Road, Lu Chu District,Taoyuan,Taiwan,China Test Firm ..................................... : Shenzhen CTL Testing Technology Co., Ltd. Address of Test Firm ................. : Floor 1-A, Baisha Technology Park, No.3011, Shahexi Road, Nanshan District, Shenzhen, China 518055 Test specification ....................... : Standard ...................................... : FCC Part 15.247: Operation within the bands 902-928 MHz, 2400-2483.5 MHz and 5725-5850 MHz. TRF Originator ............................. : Shenzhen CTL Testing Technology Co., Ltd. Master TRF .................................. : Dated 2011-01 Date of receipt of test item ........ : Mar. 04, 2024 Date of Test Date ........................ : Mar. 04, 2024- Mar. 21, 2024 Date of Issue .............................. : Apr. 18, 2024 Result .......................................... : Pass Shenzhen CTL Testing Technology Co., Ltd. All rights reserved. This publication may be reproduced in whole or in part for non-commercial purposes as long as the Shenzhen CTL Testing Technology Co., Ltd. is acknowledged as copyright owner and source of the material. Shenzhen CTL Testing Technology Co., Ltd. takes no responsibility for and will not assume liability for damages resulting from the reader's interpretation of the reproduced material due to its placement and context. V1.0 Page 2 of 44 Report No.: CTL2401102093-WF 01 TEST REPORT Test Report No. : CTL2401102093-WF01 Apr. 18, 2024 Date of issue Equipment under Test : Bluetooth Speaker with Power Bank Sample No : CTL2401102093 Model /Type : BTS121 Listed Models : N/A Applicant : TennRich International Corp. Address : 1-3, Alley 5, Lane 305, Sec 1,Shin Nan Road, Lu Chu District,Taoyuan,Taiwan,China Manufacturer : Shenzhen Rongke Shengshi Electronic Co.,Ltd Address : 5F, Building 1, Starlight Industrial Zone, No.17, Gonghe industrial Road Xixiang,Baoan, Shenzhen,China Test result Pass * *In the configuration tested, the EUT complied with the standards specified page 5. The test results presented in this report relate only to the object tested. This report shall not be reproduced, except in full, without the written approval of the issuing testing laboratory. V1.0 Page 3 of 44 Report No.: CTL2401102093-WF 01 ** Modified History ** Revisions Description Issued Data Report No. Remark Version 1.0 Initial Test Report Release 2024-04-18 CTL2401102093-WF01 Tracy Qi V1.0 Page 4 of 44 Report No.: CTL2401102093-WF 01 Table of Contents Page 1. SUMMARY ............................................................................................................................................................... 5 1.1. TEST STANDARDS ..................................................................................................................................................... 5 1.2. TEST DESCRIPTION ........................................................................................................................................................ 5 1.3. TEST FACILITY .............................................................................................................................................................. 6 1.4. STATEMENT OF THE MEASUREMENT UNCERTAINTY ............................................................................................................... 6 2. GENERAL INFORMATION .......................................................................................................................................... 8 2.1. ENVIRONMENTAL CONDITIONS ........................................................................................................................................ 8 2.2. GENERAL DESCRIPTION OF EUT ...................................................................................................................................... 8 2.3. DESCRIPTION OF TEST MODES AND TEST FREQUENCY .......................................................................................................... 9 2.4. EQUIPMENTS USED DURING THE TEST ............................................................................................................................ 10 2.5. RELATED SUBMITTAL(S) / GRANT (S) .............................................................................................................................. 10 2.6. MODIFICATIONS ......................................................................................................................................................... 10 3. TEST CONDITIONS AND RESULTS ............................................................................................................................ 11 3.1. CONDUCTED EMISSIONS TEST ....................................................................................................................................... 11 3.2. RADIATED EMISSIONS AND BAND EDGE .......................................................................................................................... 14 3.3. MAXIMUM PEAK OUTPUT POWER ................................................................................................................................ 29 …

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FCC ID: 2AU4P-BTS121 Page 1 of 2 Report No.: CTL2401102093-WF Test Setup Photos of the EUT FCC ID: 2AU4P-BTS121 Page 2 of 2 Report No.: CTL2401102093-WF