2BN39-0B-CSB2Multi-function Wireless Speaker

Wireless Speaker With Wireless Charger USER MANUAL ltem No.:OTM-BTS Loudspeaker Out put: 5W Fr equency Response: 20Hz-20KHz Distortion: ≤1.0% Si gnal-To-Noise: ≥75dB Range: ≤10m Dimensions: 116 x 110 x 62.6mm S peaker x 1 Charging Cable x1 User Manual x1 Version Input Wireless Out put 15W 12V 2A, 9V 2.5A, 5V 3A 15W/10W/7.5W/5W Wireless Charger Specifications Wireless Speaker Specifications Package Contents 1. Wireless Charging Area & Phone Stand 2. Vol- / Next track: Short press for volume down, Long press for previous track. 3. Play / Pause Button: Short press to play or pause. 4. Vol+ / Previous track: Short press for volume up, Long press for next track. 5. Foldable Bracket 6.Power Slide Switch 7. Type-C Input Port 8.Indicator ① ② ③ ④ ⑤ ⑥ ⑦ ⑧ Features & Functions Charging The Speaker 1. Connect the charging cable (included) between the speaker and the output of a wall charger or power supply(not included). 2. When charging, The charging indicator will be on. Once fully charged, the charging indicator will be off. Note: Please fully charge the speaker prior to first use. Power On/Off The Speaker Flip the power slide switch to the position ‘on’ or ‘off’ to turn on or turn off the speak er. Bluetooth Mode 1. Flip the power slide switch to the position ‘on’ to tum on the speaker, and enter Bluetooth mode. 2. Turn on the Bluetooth on your phone or other device, search for ‘OTM-BTS’ on the list and then pair it. There is a prompt tone when the pairing is successful. Note: Disconnect the speaker from other Bluetooth device before pairing. Operating Instruction Wireless Charging Mode 1.Connect the charging cable(included) between the speaker and a wall charger or power supply(not included). Make sure the output power of a wall charger PD22.5W. 2.Put the Qi-enabled phone on the center of wireless charging area. Please only place your smartphone horizontally for wireless charging if the phone stand is opened. Note: The power slide switch does not control the wireless charging function. 1. Use only the approved USB output of a wall charger or power supply, otherwise, may it will cause danger. 2. Do not place any foreign objects, including metals, magnetic absorbers, and IC cards, in the wireless charging detection area, as this may cause abnormal charging or overheating and damage the unit. 3. Do not place your phone vertically if the phone stand is opened, May cause the phone to fall off. 4. Do not try to disassemble the unit as it may get damaged if you are not professional. Warm Tips 1. Why can’t my Qi-enabled phone be charged wirelessly? A: Make sure the charging cable is connected to the wall charger or power supply.Make sure the phone is placed horizontally on the center of the wireless charging area. 2. Why can't my phone use fast wireless charging? A: Check the charging cable is provided by us or original accessories of mobile phone, and the output of a Wall charger PD22.5W. 3. Why is there no sound? A: Make sure the s peaker is paired with the right Bluetooth device. Disconnect the speaker from other Bluetooth device before pairing.Turn up the volume of the speaker or phone. FAQs FCC Warning 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. NOTE 1: 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. NOTE 2: Any changes or modifications to this unit not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. Use Wireless charging RF Exposure Statement To maintain compliance with FCC'S RF Exposure guidelines, This equipment should be installed and operated with minimum 20cm between the radiator and your body . This device and its antenna(s) must not be co-located or operation in conjunction with any other antenna or transmitter. The device has been evaluated to meet general RF exposure requirement. The device can be used in portable expos ure condition without restriction.

Rev 1/26/2023 (OTM ESSENTIALS) Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: November 27, 2025 Ref: Attestation Statements Part 2.911(d)(5)(i) Filing FCC ID: 2BN39-0B-CSB2 [OTM ESSENTIALS] 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. [OTM ESSENTIALS] 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). Device is inherently compliant based on hardware limitations or software controls. or A Software Bill of Materials (SBOM) is provided to the TCB for review, and The end-user or third parties cannot install additional software on this device. Sincerely, (Gary Clack) Rev 1/26/2023 (OTM ESSENTIALS) Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: November 27, 2025 Ref: Attestation Statements Part 2.911(d)(5)(ii) Filing FCC ID: 2BN39-0B-CSB2 [OTM ESSENTIALS] 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. Sincerely, (Gary Clack)

OTM ESSENTIALS U.S. Agent Letter of Attestation To: Federal Communications Commission 7435 Oakland Mills Road, Columbia, MD 21046, USA Date: November 27, 2025 Ref: Attestation Statement – Part 2.911(d)(7) filing FCC ID: 2BN39-0B-CSB2 OTM ESSENTIALS(“the applicant”) certifies that, as of the date of the filing of the application, OTM ESSENTIALS (“the agent”) is our designated U.S. agent for service of process for the above reference FCC ID. The applicant accepts to maintain an agent for service of process in the United States for no less than one year after either the grantee has permanently terminated all marketing and importation of the applicable equipment within the U.S., or the conclusion of any Commission- related administrative or judicial proceeding involving the equipment, whichever is later. The applicant further acknowledges it is our responsibility to inform the FCC whenever the agent information changes. OTM ESSENTIALS ("the agent) understand it is the agent's obligation to accept service of process in the United States for matters related to the applicable equipment, and at the physical U.S. address and email address. Designated U.S. Agent Company Name: OTM ESSENTIALS FRN: 0036756765 Address:27 JOURNEY, ALISO, VIEJO, California, 92656, United States Signature: Contact Person: Gary Clack Tel: 949-699-2073 Email: [email protected] Applicant OTM ESSENTIALS FRN: 0036756765 Address: 27 JOURNEY, ALISO, VIEJO, California, 92656, United States Signature: Contact Person: Gary Clack Tel: 949-699-2073 Email: [email protected]

OTM ESSENTIALS Date: November 27, 2025 Product Model Number: 0B-CSB2 FCC ID: 2BN39-0B-CSB2 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 QAI Laboratories Ltd. 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 QAI Laboratories Ltd. on our behalf shall have the same effect as acts of our own. By: Gary Clack Contact Listed on FCC Wesbite Title: Manager Email: [email protected] Telephone: 949-699-2073 On behalf of: OTM ESSENTIALS

OTM ESSENTIALS Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Date: November 27, 2025 Subject; Request for Confidentiality FCC ID: 2BN39-0B-CSB2 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: Gary Clack Title: Manager

OTM ESSENTIALS Model Difference Statement Dear Sir/Madam, Added models M39 basis of the original product 0B-CSB2 The color of appearance and model name of series models listed are different from the main model, but the circuit and the electronic construction are the same, declared by the manufacturer. Sincerely, Name: Gary Clack Company name: OTM ESSENTIALS Address: 27 JOURNEY, ALISO, VIEJO, California, 92656, United States

承 认 书 客户名称（CUSTOMER): 品名（DESCRIPTION) : A11 coil / G50 slotting + adhesive backing 90mm DATE:2025/11/26 REV.NO.:A0 Department Quality Engineering ADD： No. 1, 2nd Floor, 48 Zhuanwan Huancang Middle Road, Longhua New District, Shenzhen City TEL：+86-15112254520 FAX：+86-0755-28015170 page:1/2 HRSW ELECTRONICS CO.,LTD Note: Dong WanhongLu Hui Wei Hanman He Wei-Hua Wei Lihong 深 圳 市 鸿 日 昇 威 科 技 有 限 公 司 SPECIFICATION FOR APPROVAL Bingxin Technology Co., Ltd. 客户料号（CUSTOMER P/N）: M36 规格（SPECIFICATION) ：0.08*105*10TS， With adhesive backing， 90mm Hong Rishengwei Technology acknowledges the signing and stamping process. Confirm / DateReview / Date Approval / Date Wei Lihong 1.MECHANICAL DIMENSION (UNIT:mm) 2.SCHEMATICS: ABC D2EHI 50±120±0.50.8±190±33.5±2.52.3MAX 3.WINDING： ST EP TAPE REMAR K N1 4.ELECTRICAL SPECIFICATION: ITEM SPEC 5.BILF OF MATERIAL： NO.SGS NO. 1 2 3 4 5 6 page:2/2 TES T CON 1. Attach the magnetic sheet to the coil. The size of the magnetic sheet is 50mm, and the thickness is 0.8 ± 0.5mm. Make an L-shaped slot. 2. The position where the coil is connected to the outside. Wrap adhesive tape 1-2 times. 3. Stick the back adhesive on the back of the magnetic sheet. HRSW ELECTRONICS CO.,LTD DRAWN BYCHECKED BY APPROVED BY Glue Yellow Glue 999 LIANCHENG CO.,LTD High-temperature adhesive tape He Wei-HuaWei Lihong Adhesive backing Magnetic surface⌀48.5*0.1 CUDAK CO.,LTD PART NO TITLE G50 slotting + adhesive backing 90mm 8mmWide and high temperature adhesive tape CUDAK CO.,LTD Lead-free tin rodLead-free tin rod QIAODO magnetic sheet ⌀50*0.8Manganese-zinc hard magnetic sheet with L-shaped groove TAIYI CO.,LTD ITEMMATERIAL SPECIFICATIONMANUFACTURER Silk-covered wire Silk braided wire: 0.08 * 105 strands NANJINGJINNINGCO,LTD 100KHz,0.25V AT 25°C 100KHz,0.25V 6.5uH±10% 60mΩ Max3.8uH±15% HI-POT Coil with magnetic sheet S-F Single coil S-F Wire mesh coil:0.08*105 strands, 2U EW 10TS (Ref) LDCRLQ value SPECIFICATION FOR APPROVAL START-FINISHWIRE TYPETURNS 备注 Wei Lihong

Report No: SSP25020222-1E FCC ID: 2BN39-0B-CSB2 Annex of Test Report Annex A. EUT External Photos EUT View 1 EUT View 2 Report No: SSP25020222-1E FCC ID: 2BN39-0B-CSB2 Annex of Test Report EUT View 3 EUT View 4 Report No: SSP25020222-1E FCC ID: 2BN39-0B-CSB2 Annex of Test Report EUT View 5 EUT View 6

Report No: SSP25020222-1E FCC ID: 2BN39-0B-CSB2 Annex of Test Report Annex D. Label and Information FCC Label Sample Label Size:2cm*1cm FCC Label Specifications Text is Black in color and is justified. Labels are printed in indelible ink on permanent adhesive backing or silk-screened onto the EUT or shall be affixed at a conspicuous location on the EUT. Where the EUT is constructed in two or more sections connected by wires and marketed together, the above statement is required to be affixed only to the main control unit. When the EUT is so small or for such use that it is not practicable to place the statement on it, the above information shall be placed in a prominent location in the instruction manual or pamphlet supplied to the user or, alternatively, shall be placed on the container in which the device is marketed. FCC Label Location

Report No: SSP25020222-1E FCC ID: 2BN39-0B-CSB2 Annex of Test Report Annex B. EUT Internal Photos EUT Internal View 1 EUT Internal View 2 Report No: SSP25020222-1E FCC ID: 2BN39-0B-CSB2 Annex of Test Report EUT Internal View 3 EUT Internal View 4 PCB Antenna Report No: SSP25020222-1E FCC ID: 2BN39-0B-CSB2 Annex of Test Report EUT Internal View 5 EUT Internal View 6 Report No: SSP25020222-1E FCC ID: 2BN39-0B-CSB2 Annex of Test Report EUT Internal View 7 EUT Internal View 8 Coil Antenna

Report No: SSP25020222-3E FCC Test Report Page 1 of 13 RF Exposure Report FCC ID: 2BN39-0B-CSB2 Report No. : SSP25020222-3E Applicant : OTM ESSENTIALS Product Name : Multi-function Wireless Speaker Model Name : 0B-CSB2 Test Standard : FCC CFR 47 PART 1, 1.1310 Date of Issue : 2025-03-05 Shenzhen CCUT Quality Technology Co., Ltd. 1F, Building 35, Changxing Technology Industrial Park, Yutang Street, Guangming District, Shenzhen, Guangdong, China; (Tel.:+86-755-23406590 website: www.ccuttest.com) This test report is limited to the above client company and the product model only. It may not be duplicated without prior permitted by Shenzhen CCUT Quality Technology Co., Ltd. Report No: SSP25020222-3E FCC Test Report Page 2 of 13 Test Report Basic Information Applicant..................................: OTM ESSENTIALS Address of Applicant...............: 27 JOURNEY, ALISO, VIEJO, California, 92656, United States Manufacturer..........................: OTM ESSENTIALS Address of Manufacturer........: 27 JOURNEY, ALISO, VIEJO, California, 92656, United States Product Name.........................: Multi-function Wireless Speaker Brand Name.............................: OTM Essentials Main Model..............................: 0B-CSB2 Series Models..........................: M39 Test Standard..........................: FCC CFR 47 PART 1, 1.1310 KDB 680106 D01 Wireless Power Transfer v04 Date of Test .............................: 2025-02-27 to 2025-03-05 Test Result...............................: PASS Tested By ................................: (Coke Huang) Reviewed By............................: (Lorzix Luo) Authorized Signatory............: (Lahm Peng) Note : This test report is limited to the above client company and the product model only. It may not be duplicated without prior permitted by Shenzhen CCUT Quality Technology Co., Ltd.. All test data presented in this test report is only applicable to presented test sample. Report No: SSP25020222-3E FCC Test Report Page 3 of 13 CONTENTS 1. General Information .................................................................................................................................................... 5 1.1 Product Information ............................................................................................................................................. 5 1.2 Test Setup Information .......................................................................................................................................... 6 1.3 Test Facilities ........................................................................................................................................................ 7 1.4 List of Measurement Instruments .......................................................................................................................... 8 1.5 Measurement Uncertainty ..................................................................................................................................... 8 2. RF Exposure ................................................................................................................................................................. 9 2.1 Standard and Limit................................................................................................................................................ 9 2.2 Test Procedures .................................................................................................................................................... 9 2.3 Test Data and Results .......................................................................................................................................... 10 Annex A. Test Photos ..................................................................................................................................................... 13 Report No: SSP25020222-3E FCC Test Report Page 4 of 13 Revision History Revision Issue Date Description Revised By V1.0 2025-03-05 Initial Release Lahm Peng Report No: SSP25020222-3E FCC Test Report Page 5 of 13 1. General Information 1.1 Product Information Product Name: Multi-function Wireless Speaker Trade Name: OTM Essentials Main Model: 0B-CSB2 Series Models: M39 Rated Voltage: DC 5V by USB Output: 5W, 7.5W, 10W, 15W (Wireless output) Test Sample No: SSP25020222-1 Hardware Version: V1.0 Software Version: V1.0 Note 1: The test data is gathered from a production sample, provided by the manufacturer. Note 2: The color of appearance and model name of series models listed are different from the main model, but the circuit and the electronic construction are the same, declared by the manufacturer. Wireless Specification Wireless Standard: WPC Operating Frequency: Wireless charging Output:110.5kHz-205kHz Modulation: FSK Antenna Gain: 0dBi Type of Antenna: Coil Antenna Type of Device: Portable Device Mobile Device Report No: SSP25020222-3E FCC Test Report Page 6 of 13 1.2 Test Setup Information List of Test Modes Test Mode Description Remark TM1 Wireless charging 15W+adapter charging TM2 Wireless charging 10W+adapter charging TM3 Wireless charging 7.5W+adapter charging TM4 Wireless charging 5W+adapter charging Note1: All modes including full load, halfload and no-load have been tested, The report reflects data for the worst full load TM1 mode only. List and Details of Auxiliary Cable Description Length (cm) Shielded/Unshielded With/Without Ferrite USB cable 100 Unshielded Without Ferrite - - - - List and Details of Auxiliary Equipment Description Manufacturer Model Serial Number Dummy load YBZ DL01 - Adapter xiaomi MDY-14-EU 45461/A62505U102607S Report No: SSP25020222-3E FCC Test Report Page 7 of 13 1.3 Test Facilities Laboratory Name: Shenzhen CCUT Quality Technology Co., Ltd. 1F, Building 35, Changxing Technology Industrial Park, Yutang Street, Guangming District, Shenzhen, Guangdong, China CNAS Laboratory No.: L18863 A2LA Certificate No.: 6983.01 FCC Registration No: 583813 FCC D…

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

Report No: SSP25020222-2E FCC Test Report Page 1 of 23 FCC TEST REPORT FCC ID: 2BN39-0B-CSB2 Report No. : SSP25020222-2E Applicant : OTM ESSENTIALS Product Name : Multi-function Wireless Speaker Model Name : 0B-CSB2 Test Standard : FCC Part 15 Subpart C Date of Issue : 2025-03-05 Shenzhen CCUT Quality Technology Co., Ltd. 1F, Building 35, Changxing Technology Industrial Park, Yutang Street, Guangming District, Shenzhen, Guangdong, China; (Tel.:+86-755-23406590 website: www.ccuttest.com) This test report is limited to the above client company and the product model only. It may not be duplicated without prior permitted by Shenzhen CCUT Quality Technology Co., Ltd. Report No: SSP25020222-2E FCC Test Report Page 2 of 23 Test Report Basic Information Applicant..................................: OTM ESSENTIALS Address of Applicant...............: 27 JOURNEY, ALISO, VIEJO, California, 92656, United States Manufacturer..........................: OTM ESSENTIALS Address of Manufacturer........: 27 JOURNEY, ALISO, VIEJO, California, 92656, United States Product Name.........................: Multi-function Wireless Speaker Brand Name.............................: OTM Essentials Main Model..............................: 0B-CSB2 Series Models..........................: M39 Test Standard..........................: FCC Part 15 Subpart C ANSI C63.4-2014 ANSI C63.10-2020 Date of Test .............................: 2025-02-27 to 2025-03-05 Test Result...............................: PASS Tested By ................................: (Coke Huang) Reviewed By............................: (Lorzix Luo) Authorized Signatory............: (Lahm Peng) Note : This test report is limited to the above client company and the product model only. It may not be duplicated without prior permitted by Shenzhen CCUT Quality Technology Co., Ltd.. All test data presented in this test report is only applicable to presented test sample. Report No: SSP25020222-2E FCC Test Report Page 3 of 23 CONTENTS 1. General Information .................................................................................................................................................... 5 1.1 Product Information ............................................................................................................................................. 5 1.2 Test Setup Information .......................................................................................................................................... 6 1.3 Compliance Standards ........................................................................................................................................... 7 1.4 Test Facilities ........................................................................................................................................................ 7 1.5 List of Measurement Instruments .......................................................................................................................... 8 1.6 Measurement Uncertainty ..................................................................................................................................... 8 2. Summary of Test Results ............................................................................................................................................. 9 3. Antenna Requirement ............................................................................................................................................... 10 3.1 Standard and Limit.............................................................................................................................................. 10 3.2 Test Result .......................................................................................................................................................... 10 4. Conducted Emissions ................................................................................................................................................ 11 4.1 Standard and Limit.............................................................................................................................................. 11 4.2 Test Procedure.................................................................................................................................................... 11 4.3 Test Data and Results .......................................................................................................................................... 12 5. Radiated Emissions ................................................................................................................................................... 15 5.1 Standard and Limit.............................................................................................................................................. 15 5.2 Test Procedure.................................................................................................................................................... 15 5.3 Test Data and Results .......................................................................................................................................... 17 6. Occupied Bandwidth ................................................................................................................................................. 22 6.1 Standard and Limit.............................................................................................................................................. 22 6.2 Test Procedure.................................................................................................................................................... 22 6.3 Test Data and Results .......................................................................................................................................... 22 Report No: SSP25020222-2E FCC Test Report Page 4 of 23 Revision History Revision Issue Date Description Revised By …

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

Report No: SSP25020222-1E FCC ID: 2BN39-0B-CSB2 Annex of Test Report Annex C. Test Photos Conducted Emission Test View 1 Radiated Emission Test View Below 1GHz Report No: SSP25020222-1E FCC ID: 2BN39-0B-CSB2 Annex of Test Report