2ALNA-BTS11Portable Wireless Speaker

Shenzhen Thousandshores Technology Co., Ltd. Date: 2022-05-25 Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Subject; Request for Long Term Confidentiality FCC ID: 2ALNA-BTS11 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 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: Catherine Lu Title: Test engineer

Shenzhen Thousandshores Technology Co., Ltd. Agent Authorization Company: Shenzhen Thousandshores Technology Co., Ltd. Address: Room 1101, Building B, Lotus Plaza, No. 3186, Nanshan Avenue, Majialong Community, Nantou Street, Nanshan District, Shenz hen, China Product Name: Portable Wireless Speaker Model Number(s): BTS11 Product Description: Portable Wireless Speaker We authorize MiCOM Labs Inc., 575 Boulder Court, Pleasanton, California 94566, USA, to act on our behalf on all matters concerning the certification of above named equipment. We declare that MiCOM Labs Inc. is allowed to forward all information related to the approval and certification of equipment to the regulatory agencies as required and to discuss any issues concerning the approval application. Any and all acts carried out by MiCOM Labs on our behalf shall have the same effec t as acts of our own. Signature: Date: 2022-05-25 Name: Catherine Lu Title: Test engineer Company: Shenzhen Thousandshores Technology Co., Ltd.

Page 1 of 4 Appendix C: Photographs of EUT Product: Portable Wireless Speaker Model: BTS11 External Photos Page 2 of 4 Page 3 of 4 Page 4 of 4

Label Artwork and Location Model: BTS11 Location: Label and Size: Location

Page 1 of 6 Appendix C: Photographs of EUT Product: Portable Wireless Speaker Model: BTS11 Internal Photos Page 2 of 6 Page 3 of 6 Page 4 of 6 Antenna Page 5 of 6 Page 6 of 6

Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com TEST REPORT FCC ID. ............................ : 2ALNA-BTS11 Test Report No. ............... : TCT220507E029 Date of issue ................... : Jun. 07, 2022 Testing laboratory .......... : SHENZHEN TONGCE TESTING LAB Testing location/ address: TCT Testing Industrial Park Fuqiao 5th Industrial Zone, Fuhai Street, Bao'an District Shenzhen, Guangdong, 518103, People's Republic of China Applicant's name ............ : Shenzhen Thousandshores Technology Co., Ltd. Address ........................... : Room 1101, Building B, Lotus Plaza, No. 3186, Nanshan Avenue, Majialong Community, Nantou Street, Nanshan District, Shenzhen, China Manufacturer's name ... : Shenzhen Thousandshores Technology Co., Ltd. Address ........................... : Room 1101, Building B, Lotus Plaza, No. 3186, Nanshan Avenue, Majialong Community, Nantou Street, Nanshan District, Shenzhen, China Standard(s) ..................... : FCC CFR Title 47 Part 1.1307 Product Name ................. : Portable Wireless Speaker Trade Mark ...................... : Tribit Model/Type reference..... : BTS11 Rating(s).......................... : Rechargeable Li-ion Battery DC 3.7V Date of receipt of test item ......................................... : May 07, 2022 Date (s) of performance of test ................................... : May 07, 2022 - Jun. 07, 2022 Tested by (+signature) ... : Onnado YE Check by (+signature) .... : Beryl ZHAO Approved by (+signature): Tomsin General disclaimer: This report shall not be reproduced except in full, without the written approval of SHENZHEN TONGCE TESTING LAB. This document may be altered or revised by SHENZHEN TONGCE TESTING LAB personnel only, and shall be noted in the revision section of the document. The test results in the report only apply to the tested sample. Report No.: TCT220507E029 Page 2 of 6 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com Table of Contents 1. General Product Information .................................................................. 3 1.1. EUT description ..................................................................................................... 3 1.2. Model(s) list ............................................................................................................ 3 2. General Information ................................................................................. 4 2.1. Test environment and mode ................................................................................. 4 2.2. Description of Support Units ................................................................................ 4 3. Facilities and Accreditations .................................................................. 5 3.1. Facilities ................................................................................................................. 5 3.2. Location ................................................................................................................. 5 4. Test Results and Measurement Data ..................................................... 6 Report No.: TCT220507E029 Page 3 of 6 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com 1. General Product Information 1.1. EUT description Product Name ....................... : Portable Wireless Speaker Model/Type reference........... : BTS11 Sample Number....................: TCT220507E028-0101 Operation Frequency ........... : 2402MHz~2480MHz Modulation Type ................... : GFSK, π/4-DQPSK, 8DPSK Antenna Type ........................ : FPC Antenna Antenna Gain ........................ : 3.33dBi Rating(s)................................ : Rechargeable Li-ion Battery DC 3.7V Note: The antenna gain listed in this report is provided by applicant, and the test laboratory is not responsible for this parameter. 1.2. Model(s) list None. Report No.: TCT220507E029 Page 4 of 6 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com 2. General Information 2.1. Test environment and mode Item Normal condition Temperature +25ºC Voltage DC 3.7V Humidity 56% Atmospheric Pressure: 1008 mbar Test Mode: Engineering mode: Keep the EUT in continuous transmitting by select channel 2.2. Description of Support Units The EUT has been tested as an independent unit together with other necessary accessories or support units. The following support units or accessories were used to form a representative test configuration during the tests. Equipment Model No. Serial No. FCC ID Trade Name / / / / / Note: 1. All the equipment/cables were placed in the worst-case configuration to maximize the emission during the test. 2. Grounding was established in accordance with the manufacturer’s requirements and conditions for the intended use. 3. For conducted measurements (Output Power, 20dB Occupied Bandwidth, Carrier Frequencies Separation, Hopping Channel Number, Dwell Time, Spurious Emissions), the antenna of EUT is connected to the test equipment via temporary antenna connector, the antenna connector is soldered on the antenna port of EUT, and the temporary antenna connector is listed in the Test Instruments. Report No.: TCT220507E029 Page 5 of 6 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com 3. Facilities and Accreditations 3.1. Facilities The test facility is recognized, certified, or accredited by the following organizations: ● FCC - Registration No.: 645098 SHENZHEN TONGCE TESTING LAB Designation Number: CN1205 The testing lab has been registered and fully described in a report with the (FCC) Federal Communications Commission. The acceptance letter from the FCC is maintained in our files. ● IC - Registration No.: 10668A-1 SHENZHEN TONGCE TESTING LAB CAB identifier: CN0031 The testing lab has been registered by Certification and Engineering Bureau of Industry Canada for radio equipment testing.…

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Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com TEST REPORT FCC ID. ............................ : 2ALNA-BTS11 Test Report No. ............... : TCT220507E028 Date of issue ................... : Jun. 07, 2022 Testing laboratory .......... : SHENZHEN TONGCE TESTING LAB Testing location/ address: TCT Testing Industrial Park Fuqiao 5th Industrial Zone, Fuhai Street, Bao'an District Shenzhen, Guangdong, 518103, People's Republic of China Applicant's name ............ : Shenzhen Thousandshores Technology Co., Ltd. Address ........................... : Room 1101, Building B, Lotus Plaza, No. 3186, Nanshan Avenue, Majialong Community, Nantou Street, Nanshan District, Shenzhen, China Manufacturer's name ... : Shenzhen Thousandshores Technology Co., Ltd. Address ........................... : Room 1101, Building B, Lotus Plaza, No. 3186, Nanshan Avenue, Majialong Community, Nantou Street, Nanshan District, Shenzhen, China Standard(s) ..................... : FCC CFR Title 47 Part 15 Subpart C Section 15.247 FCC KDB 558074 D01 15.247 Meas Guidance v05r02 ANSI C63.10:2013 Product Name ................. : Portable Wireless Speaker Trade Mark ...................... : Tribit Model/Type reference..... : BTS11 Rating(s).......................... : Rechargeable Li-ion Battery DC 3.7V Date of receipt of test item ......................................... : May 07, 2022 Date (s) of performance of test ................................... : May 07, 2022 - Jun. 07, 2022 Tested by (+signature) ... : Onnado YE Check by (+signature) .... : Beryl ZHAO Approved by (+signature): Tomsin General disclaimer: This report shall not be reproduced except in full, without the written approval of SHENZHEN TONGCE TESTING LAB. This document may be altered or revised by SHENZHEN TONGCE TESTING LAB personnel only, and shall be noted in the revision section of the document. The test results in the report only apply to the tested sample. Report No.: TCT220507E028 Page 2 of 97 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com Table of Contents 1. General Product Information .................................................................. 3 1.1. EUT description ..................................................................................................... 3 1.2. Model(s) list ............................................................................................................ 3 1.3. Operation Frequency ............................................................................................ 3 2. Test Result Summary .............................................................................. 4 3. General Information ................................................................................. 5 3.1. Test environment and mode ................................................................................. 5 3.2. Description of Support Units ................................................................................ 5 4. Facilities and Accreditations .................................................................. 6 4.1. Facilities ................................................................................................................. 6 4.2. Location ................................................................................................................. 6 4.3. Measurement Uncertainty ..................................................................................... 6 5. Test Results and Measurement Data ..................................................... 7 5.1. Antenna requirement ............................................................................................ 7 5.2. Conducted Emission ............................................................................................. 8 5.3. Conducted Output Power ................................................................................... 12 5.4. 20dB Occupy Bandwidth .................................................................................... 13 5.5. Carrier Frequencies Separation ......................................................................... 14 5.6. Hopping Channel Number .................................................................................. 15 5.7. Dwell Time ............................................................................................................ 16 5.8. Pseudorandom Frequency Hopping Sequence ................................................ 17 5.9. Conducted Band Edge Measurement ................................................................ 18 5.10.Conducted Spurious Emission Measurement .................................................. 19 5.11.Radiated Spurious Emission Measurement ..................................................... 20 Appendix A: Test Result of Conducted Test Appendix B: Photographs of Test Setup Appendix C: Photographs of EUT Report No.: TCT220507E028 Page 3 of 97 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com 1. General Product Information 1.1. EUT description Product Name ....................... : Portable Wireless Speaker Model/Type reference........... : BTS11 Sample Number....................: TCT220507E028-0101 Bluetooth Version ................ : V5.3 Operation Frequency ........... : 2402MHz~2480MHz Transfer Rate ........................ : 1/2/3 Mbits/s Number of Channel .............. : 79 Modulation Type ................... : GFSK, π/4-DQPSK, 8DPSK Modulation Technology ....... : FHSS Antenna Type ........................ : FPC Antenna Antenna Gain ........................ : 3.33dBi Rating(s)................................ : Rechargeable Li-ion Battery DC 3.7V Note: The antenna gain listed in this report is provided by applicant, and the test laboratory is not responsible for this parameter. 1.2. Model(s) list None. 1.3. Operation Frequency Channel Frequency Channel Frequency Channel Frequency Channel Frequency 0 24…

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Report No.: TCT220507E028 Page 86 of 97 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com Appendix B: Photographs of Test Setup Product: Portable Wireless Speaker Model: BTS11 Radiated Emission Report No.: TCT220507E028 Page 87 of 97 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com Conducted Emission Report No.: TCT220507E028 Page 88 of 97 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com Appendix C: Photographs of EUT Product: Portable Wireless Speaker Model: BTS11 External Photos Report No.: TCT220507E028 Page 89 of 97 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com Report No.: TCT220507E028 Page 90 of 97 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com Report No.: TCT220507E028 Page 91 of 97 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com Report No.: TCT220507E028 Page 92 of 97 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com Product: Portable Wireless Speaker Model: BTS11 Internal Photos Report No.: TCT220507E028 Page 93 of 97 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com Report No.: TCT220507E028 Page 94 of 97 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com Report No.: TCT220507E028 Page 95 of 97 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com Report No.: TCT220507E028 Page 96 of 97 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com Report No.: TCT220507E028 Page 97 of 97 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com *****END OF REPORT*****

Page 1 of 2 Appendix B: Photographs of Test Setup Product: Portable Wireless Speaker Model: BTS11 Radiated Emission Page 2 of 2 Conducted Emission