2ALNA-TBM01BUBBLE MACHINE

Provides adequate protection form ingress of moisture when connected. Fournit une protection adéquate contre la pénétration d'humidité lorsqu'il est connecté.

Shenzhen Thousandshores Technology Co., Ltd. Date: 2022-04-07 Office of Engineering Technology Federal Communications Commis sion 7435 Oakland Mills Road Columbia, MD 21046 USA Subject; Request for Long Term Confidentiality FCC ID:2ALNA-TBM01 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. Si ncerely, Si gnature: Nam e: Catherine Lu Ti tle: Test engineer

Shenzhen Thousandshores Technology Co., Ltd. Room 1101, Building B, Lotus Plaza, No. 3186, Nanshan Avenue, Majialong Community, Nantou Street, Nanshan District, Shenzhen, China Statement Product: BUBBLE MACHINE Model: TBM01 Additional Model: LA-53821, 777-91611-92, Y26-80300-51, TBM02, TBM03, TBM04, TBM05, TBM06, TBM07, TBM08, TBM09, TBM10 Trademark : Theefun We hereby state that All models above are identical in interior structure, electrical circuits and components, and just model names are different for the marketing requirement. Your assistance on this matter is highly appreciated. Yours sincerely, Signature: Date: 2022-04-07 Name: Catherine Lu Company 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 Tel / Fax: +86-0755-26728574/+86-0755-26973399 E-Mail [email protected]

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, Shenzhen, China Product Name:BUBBLE MACHINE Model Number(s): TBM01, LA-53821, 777-91611-92, Y26-80300-51, TBM02, TBM03, TBM04, TBM05, TBM06, TBM07, TBM08, TBM09, TBM10 Product Description:BUBBLE MACHINE We authorize MiCOM Labs Inc., 575 Boulder Court, Pleas anton, 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 s hall have the same effect as acts of our own. Signature: Date: 2022-04-07 Name: CatherineLu Title: Test engineer Company: Shenzhen Thousandshores Technology Co., Ltd.

Page 1 of 4 Appendix C: Photographs of EUT Product: BUBBLE MACHINE Model: TBM01 External Photos Page 2 of 4 Page 3 of 4 Page 4 of 4

LabelArtworkandLocation Model:TBM01 Label: Size:L*W=25*18mm Location

Page 1 of 2 Appendix C: Photographs of EUT Product: BUBBLE MACHINE Model: TBM01 Internal Photos Antenna Page 2 of 2

Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com TEST REPORT FCC ID. ............................ : 2ALNA-TBM01 Test Report No. ............... : TCT211210E001 Date of issue ................... : Mar. 10, 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 15.231 Product Name ................. : BUBBLE MACHINE Trade Mark ...................... : Theefun Model/Type reference..... : TBM01, LA-53821, 777-91611-92, Y26-80300-51, TBM02, TBM03, TBM04, TBM05, TBM06, TBM07, TBM08, TBM09, TBM10 Rating(s).......................... : DC 3V Date of receipt of test item ......................................... : Dec. 10, 2021 Date (s) of performance of test ................................... : Dec. 10, 2021 ~ Mar. 10, 2022 Tested by (+signature) ... : Rleo LIU 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.: TCT211210E001 Page 2 of 29 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. 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. Radiated Emission Measurement ........................................................................ 9 5.4. Manually Activated Transmitter ......................................................................... 19 5.5. Occupied Bandwidth ........................................................................................... 21 Appendix A: Photographs of Test Setup Appendix B: Photographs of EUT Report No.: TCT211210E001 Page 3 of 29 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 ....................... : BUBBLE MACHINE Model/Type reference........... : TBM01 Sample Number....................: TCT211210E001-0101 Operation Frequency ........... : 433.94MHz Modulation Technology ....... : FSK Antenna Type ........................ : Telescopic Antenna Antenna Gain ........................ : 0dBi Rating(s)................................ : DC 3V 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 No. Model No. Tested with 1 TBM01 Other models LA-53821, 777-91611-92, Y26-80300-51, TBM02, TBM03, TBM04, TBM05, TBM06, TBM07, TBM08, TBM09, TBM10 Note: TBM01 is tested model, other models are derivative models. The models are identical in circuit and PCB layout, only different on the model names. So the test data of TBM01 can represent the remaining models. Report No.: TCT211210E001 Page 4 of 29 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com 2. Test Result Summary Requirement CFR 47 Section Result Antenna Requirement §15.203/§15.247 (c) PASS Conduction Emission, 0.15MHz to 30MHz §15.207 N/A Manually Activated Transmitter §15.231(a) PASS Radiation Emission §15.231(b), §15.205, §15.209, §15.35 PASS Occupied Bandwidth §15.231(c) PASS Note: 1. PASS: Test item meets the requirement. 2. Fail: Test item does not meet the requirement. 3. N/A: Test case does not apply to the test object. 4. The test result judgment is decided by the limit of test standard. Report No.: TCT211210E001 Page 5 of 29 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com 3. General Information 3.1. …

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Page 1 of 1 Appendix A: Photographs of Test Setup Product: BUBBLE MACHINE Model: TBM01 Radiated Emission