2BCYX-AIRFIT01AirFit

2023.08 Airbox AirFitUser’sGuide 1.WhatisAirFit? AirFitisahometrainingairexerciseequipmentthatusesanairmat. Youcandojumpingorbalanceexerciseontheairmat Possibletomanufactureairmatswithvariousdesignsandimageprinting Real-timefeedbackonjumpingexercisestatuswithadedicatedsmartapp. Providesvariousgameapplicationsforfunexercise 2.AirFitProcductComposition AirMattress:Airmatmadeofdoublespacepaper(100*15cm) Sensingdevice:Adevicethatdetectsmovementstatus AirFitApplication:Providesvariousgamessuchas1person,3people,and teams 3.HowtoUse 3-1.Airexercisematinstallation Spreadtheairexercisematonaflatfloorortable. Injectairsothattheinternalpressurebecomes80~90mbarusinganairpump. Connectthesensordevicetotheairinlet 3-2.Useofsensordevice Ifchargingisrequired,inserttheUSB-CTypeconnectorintothechargingjack. Ifyouliftthepowerswitchintheoppositedirectionofthechargingjack,the sensordeviceturnson. Whenthesensordeviceisturnedon,theredLEDblinksandsearchesforthe smartphoneAirFitapp. WhenthesensordeviceisconnectedtotheAirFitapp,itstopsblinkingand turnsred. TheredLEDturnsoffautomaticallyifitisnotconnectedtotheappwithin3 minutes. Whenthechargingcordispluggedin,thegreenLEDturnson. Whenthebatteryisfullycharged,thechargingLEDturnsoff. 3-3.InstalltheAirFitApp. SearchforAirFitinGooglePlayStoreorAppleAppstoreandinstallit. 4.Sensordevicespecifications Size :7cm*5.5cm Material:PC+ABS Power :DC3.3VLi-ionpolymerbattery Charge :USB-CType Wireless:Bluetooth5.0 countryofmanufacture:Korea companyofmanufacture:Airbox 5.ManufacturingandSalescompany CompanyAIRBOX Address 182,577Beon-gil,Neungheodae-ro,Namdong-gu, Incheon,Korea Phone+82-32-819-3690 [email protected] Homepagewww.airbox.co.kr,airboxmall.kr FCC Information to User 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 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 con-nected. • Consult the dealer or an experienced radio/TV technician for help. Caution Modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment. FCC Compliance Information : 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

Air Box Co., Ltd. Attestation Statement Letter I Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Date: 2023-09-22 Ref: Attestation Statements Part 2.911(d)(5)(i) Filing FCC Application for FCC ID: 2BCYX-AIRFIT01 Air Box Co., Ltd. certifies that the equipment for which authorization is sought is not “covered” equipment prohibited for receiving an equipment authorization pursuant to section 2.903 of the FCC rules. Sincerely, Applicant’s Signature: Applicant’s Name: SEUNG WOOK LIM

Air Box Co., Ltd. Attestation Statement Letter II Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 2023-09-22 Ref: Attestation Statements Part 2.911(d)(5)(ii) Filing FCC Application for FCC ID: 2BCYX-AIRFIT01 Air Box Co., Ltd. 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, Applicant’s Signature: Applicant’s Name: SEUNG WOOK LIM

Air Box Co., Ltd. 182, Neungheodae-ro 577beon-gil, Namdong-gu, Incheon, Korea Date: 2023-09-22 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 FCC ID: 2BCYX-AIRFIT01 US Agent – Attestation Statement / Part 2.911(d)(7) Air Box Co., Ltd. certifies, that as of 2023-09-22, we have designated FCC US Agent, LLC to accept service of process on our behalf for FCC ID: 2BCYX-AIRFIT01 Air Box Co., Ltd. accepts to maintain an agent of 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. FCC US Agent, LLC, accepts as of the date of the filing of this application, the obligation of being the designated agent for the purpose of accepting service of process on behalf of Air Box Co., Ltd. for FCC ID: 2BCYX-AIRFIT01 Designated Agent Information: Company Name: FCC US Agent, LLC FRN: 0033402884 Address: 3722 Illinois Avenue, Saint Charles, IL, 60174, USA Contact Person: Tim Payne Phone: 708-571-3148 Email: [email protected] Sincerely, Company: Air Box Co., Ltd. Designated Agent: FCC US Agent, LLC Company Representative: SEUNG WOOK LIM Designated Agent Representative: Tim Payne Signature: Signature:

AIRBOX CO., LTD 182, Neungheodae-ro 577beongil, Namdong-gu, Incheon, Korea Tel. +82-32-819-3690 August 30, 2023 Vista Laboratories, Inc. 1261 Puerta Del Sol San Clemente, CA 92673 Family Model Letter There is no difference in appearance between the base and derivative models; the reason for adding the derivative model is simply for sales purposes. Type Type Basic model : AirFit 01 Derivative model : AirHearty 01 Sincerely, LIM SEUNG WOOK / General AIRBOX CO., LTD

Date: 04/17/2018 VCB_F-01: Operating Procedures Form – FCC Authorization v02 Page 1 of 1 Air Box Co., Ltd. Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Date: 2023-09-22 SUBJECT: FCC Application for (FCC ID: 2BCYX-AIRFIT01) To Whom It May Concern: We, the undersigned, hereby authorize David Zhang in Vista Laboratories, Inc. on our behalf, to apply to the Federal Communications Commission on our equipment. Any and all acts carried out by Vista Laboratories, Inc. on our behalf shall have the same effect as acts of our own. This is to advise that we are in full compliance with the Anti- Drug Abuse Act. We, the applicant, are not subject to a denial of federal benefits pursuant to Section 5301 of the Anti-Drug Act of 1988, 21 USC853a, and no party to the application is subject to a denial of federal benefits pursuant to that section. Sincerely, (Must be signed by the person that is listed on the FCC Website) Client’s signature: Client’s name & title: SEUNG WOOK LIM / Manager Contact information / address: '+82-32-819-3690/ 182, Neungheodae-ro 577beon- gil, Namdong-gu, Incheon, Republic of Korea

Date: 04/17/2018 VCB_F-01: Operating Procedures Form – FCC Confidentiality v03 Page 1 of 1 Air Box Co., Ltd. Federal Communications Commission Authorization and Evaluation Division Confidentiality Request regarding application for certification of FCC ID: 2BCYX- AIRFIT01 Pursuant to Sections 0.457 and 0.459 of the Commission’s Rules, we hereby request confidential treatment of information accompanying this application as outlined below: Type of Confidentiality Requested Exhibit Type ☐Short Term ☒Permanent Block Diagrams ☒Short Term External Photos ☒Short Term ☐Permanent* Internal Photos ☐Short Term ☒Permanent Operation Description ☐Short Term ☒Permanent Parts List/BOM ☐ Short Term ☒Permanent Schematics ☒Short Term Test Setup Photos ☒Short Term ☐Permanent* User manual *Requires further justification before permanent confidentiality will be allowed. The above materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these materials may be harmful to the applicant and provide unjustified benefits to its competitors. Permanent Confidentiality: The applicant requests the exhibits listed above as permanently confidential be withheld from public review due to materials that contain trade secrets and proprietary information not customarily released to the public. Short-Term Confidentiality: Pursuant to DA04-1705 June 15, 2004 of the Commission’s public notice, we also request temporary confidential treatment of information accompanying this application as outlined below for an initial period of 180 days. Sincerely, Client’s signature: Client’s name & title : SEUNG WOOK LIM / Manager Contact information / address: +82-32-819-3690/ 182, Neungheodae-ro 577beon-gil, Namdong-gu, Incheon, Republic of Korea

FCC ID: 2BCYX-AIRFIT01 Page 1 of 4 Upper Lower FCC ID: 2BCYX-AIRFIT01 Page 2 of 4 Side 1 Side 2 FCC ID: 2BCYX-AIRFIT01 Page 3 of 4 Side 3 Side 4 FCC ID: 2BCYX-AIRFIT01 Page 4 of 4 Ant

FCC ID: 2BCYX-AIRFIT01 Copyright Ⓒ 2023, KRL Co., Ltd. SAMPLE LABEL & LOCATION Air Box Co., Ltd. M/N: AIRFIT01 FCC ID: 2BCYX-AIRFIT01

FCC ID: 2BCYX-AIRFIT01 Page 1 of 1 Main Board Front Main Board Rear

Model Name : FCC ID : (mm)(dBm)(dB)(dBm)(mW) 2402-2.86-1.860.653.00PASS 2442-3.58-2.580.553.00PASS 2480-3.61-2.610.553.00PASS 2BCYX-AIRFIT01 Separation distance : 5.0 mm MPE Calculation KDB 447498 - 4.3.1 a) For 100 MHz to 6 GHz and test separation distances ≤ 50 mm, the 1-g and 10-g SAR test exclusion thresholds are determined by the following: [(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 AirFit 01Device Category : Portable device Standalone SAR Test exclusion thresholds for 100MHz to 6GHz at test separation distance ≤ 50 mm LimitResultModulation Frequency (MHz) Min. Test separation distance Measured Maximum Average power Tune-up tolerance Max. Power with tune-up tolerance BT LE 5.00± 1.00 0.2020 0.1725 0.1727

[PCBAntennaSpec] 2023.07 (주)에어박스 PlaneXaxisYaxisZaxis PeakGain(dBi)3dBi2.3dBi3.2dBi

R Report No.: KR0140-RF2309-004 EMCLabs-QPF-26-25 [Enactment_00 / 2022. 09. 07] Page 1 / 47 This test report shall not be reproduced except in full, Without the written approval. 본 시험성적서는 (주)ABCD의 서면 동의 없이 무단 전제 및 복사를 할 수 없습니다. Test Report 1. Client ᆞName : AIRBOX CO., LTD ᆞAddress : 182, Neungheodae-ro 577beongil, Namdong-gu, Incheon, Korea 2. Use of Report : FCC Approval 3. Sample Description ᆞProduct Name : AirFit ᆞModel Name : AirFit 01 4. Date of Receipt : 2023-08-23 5. Date of Test : 2023-09-14 ~ 2023-09-20 6. Test Method : FCC Part 15 Subpart C 15.247 7. Test Results : Refer to the test results This test report must not be reproduced or reproduced in any way. The results shown in this test report are the results of testing the samples provided. This test report is prepared according to the requirements of ISO / IEC 17025. Affirmation Tested by Dae-Seong, Choi (signature) Technical Manager Jong-Myoung, Shin (signature) Sep 21, 2023 EMC Labs Co., Ltd. (seal) R Report No.: KR0140-RF2309-004 EMCLabs-QPF-26-25 [Enactment_00 / 2022. 09. 07] Page 2 / 47 This test report shall not be reproduced except in full, Without the written approval. 본 시험성적서는 (주)ABCD의 서면 동의 없이 무단 전제 및 복사를 할 수 없습니다. Contents 1. Applicant & Manufacturer & Test Laboratory Information··································· 4 2. Equipment under Test(EUT) Information······················································· 5 3. Test Summary······················································································· 6 4. Used equipment on test·········································································· 7 5. Antenna Requirement·············································································· 7 6. 6 dB Bandwidth & Occupied Bandwidth (99%)··············································· 9 7. Maximum Peak Output Power···································································· 13 8. Peak Power Spectral Density····································································· 16 9. TX Radiated Spurious Emission and Conducted Spurious Emission····················· 19 10. Conducted Emission··············································································· 41 APPENDIX APPENDIX I TEST SETUP············································································ 44 APPENDIX II UNCERTAINTY·········································································· 46 R Report No.: KR0140-RF2309-004 EMCLabs-QPF-26-25 [Enactment_00 / 2022. 09. 07] Page 3 / 47 This test report shall not be reproduced except in full, Without the written approval. 본 시험성적서는 (주)ABCD의 서면 동의 없이 무단 전제 및 복사를 할 수 없습니다. Version TEST REPORT NO. DATE DESCRIPTION KR0140-RF2309-004 Sep 21, 2023 Initial Issue R Report No.: KR0140-RF2309-004 EMCLabs-QPF-26-25 [Enactment_00 / 2022. 09. 07] Page 4 / 47 This test report shall not be reproduced except in full, Without the written approval. 본 시험성적서는 (주)ABCD의 서면 동의 없이 무단 전제 및 복사를 할 수 없습니다. 1. Applicant & Manufacturer & Test Laboratory Information 1.1 Applicant Information Applicant AIRBOX CO., LTD Applicant Address 182, Neungheodae-ro 577beongil, Namdong-gu, Incheon, Korea Contact Person LIM SEUNG WOOK Telephone No. +82-32-819-3690 Fax No. - E-mail [email protected] 1.2. Manufacturer Information Manufacturer AIRBOX CO., LTD Manufacturer Address 182, Neungheodae-ro 577beongil, Namdong-gu, Incheon, Korea 1.3 Test Laboratory Information Laboratory EMC Labs Co., Ltd. Laboratory Address 100, Jangjateo-ro, Hobeop-myeon, Icheon-si, Gyeonggi-do, Republic of Korea Contact Person Jong-Myoung, Shin Telephone No. +82-31-637-8895 Fax No. +82-505-116-8895 FCC Designation No. KR0140 FCC Registration No. 580000 IC Site Registration No. 28751 R Report No.: KR0140-RF2309-004 EMCLabs-QPF-26-25 [Enactment_00 / 2022. 09. 07] Page 5 / 47 This test report shall not be reproduced except in full, Without the written approval. 본 시험성적서는 (주)ABCD의 서면 동의 없이 무단 전제 및 복사를 할 수 없습니다. 2. Equipment under Test(EUT) Information 2.1 General Information Product Name AirFit Model Name AirFit 01 FCC ID 2BCYX-AIRFIT01 Rated Voltage DC 3.7 V 2.2 Additional Information Operating Frequency 2 402 MHz ~ 2 480 MHz Number of channel 40 Modulation Type GFSK Antenna Type PCB Pattern Antenna Antenna Gain 3.2 dBi Firmware Version 1.0 Hardware Version 1.0 Test software nRF Connect 2.3 Test Frequency Test mode Test Frequency (MHz) Low Frequency Middle Frequency High Frequency BLE 2 402 2 442 2 480 2.4 Used Test Software Setting Value Test Mode Setting Item Power BLE 0 2.5 Mode of operation during the test - The EUT continuous transmission mode during the test with set at Low Channel, Middle Channel, and High Channel. To get a maximum radiated emission levels from the EUT, the EUT was moved throughout the XY, YZ, XZ planes. 2.6 Modifications of EUT - None R Report No.: KR0140-RF2309-004 EMCLabs-QPF-26-25 [Enactment_00 / 2022. 09. 07] Page 6 / 47 This test report shall not be reproduced except in full, Without the written approval. 본 시험성적서는 (주)ABCD의 서면 동의 없이 무단 전제 및 복사를 할 수 없습니다. 3. Test Summary Applied FCC Rule IC Rule Test Items Test Condition Result 15.203 - Antenna Requirement Conducted C 15.247(a) RSS-247 (5.2) 6 dB Bandwidth C - RSS GEN (6.7) Occupied Bandwidth (99%) C 15.247(b) RSS-247 (5.4) Maximum Peak Output Power C 15.247(e) RSS-247 (5.2) Peak Power Spectral Density C 15.247(d) RSS-247 (5.5) Conducted Spurious Emission C 15.247(d) 15.205 & 15.209 RSS-247 (5.5) RSS-GEN (8.9 & 8.10) Radiated Spurious Emission Radiated C 15.207 RSS-GEN (8.8) Conducted Emissions AC Line Conducted C Note 1: C=Complies NC=Not Complies NT=Not Tested NA=Not Applicable The sample was tested according to the following specification: ANSI C63.10:2013. Compliance was determined by specification limits of the applicable standard according to customer requirements. R Report No.: KR0140-RF2309-004 EMCLabs-QPF-26-25 [Enactment_00 / 2022. 09. 07] Page 7 / 47 This test report shall not be reproduced except in full, Without the written approval. …

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

Below 30 MHz Below 1 GHz Above 1 GHz Conducted Emission