FCC ID: 2AVSG-BREATHE-ONNB Breathe-On

Breathe-On(NB) User Manual 2020. 03. Contents 1. Introduce --------------------------------------- 1 2. Installation Guide ------------------------------ 2 3. Operation -------------------------------------- 3 Product Specification ------------------------ 11 Safety Warning(battery) --------------------- 11 FCC REGULATORY DISCLOSURES ---------------- 13 1. Introduce This product is a digital smart respiratory muscle strengthening device using atmospheric pressure sensor based on 'IoT'. For people who need breathing training (cardiopulmonary strengthening), individual difficulty can be adjusted. Respiratory data can be accumulated and confirmed through feedback of volume. Mobile-based breathing training sensors and programs that can be performed continuously, accurately and easily. Can be combined with exercise to perform more effective breathing exercises. Anytime, anyplace, as interesting as a game. Ergonomic design with wrist angle and grip. App games(Total 12 types) - will be updated continuously. Connect with wireless communications. Android base : Smart phone, Tablet PC, Smart TV Interlocking.(iOS is under development) Help to improve breathing exercise & cardiopulmonary endurance.

- 1 -

2. Installation Guide

- 2 -

3. Operation Pairing

*First, install the app on your smartphone or tablet. 1. Turn on Bluetooth on your smartphone or tablet. 2. Press the power button on your Breathe-On(Device). 3. Launch the installed app Breathe-On and tap the screen. 4. Press the Select User button at the pop-up page.

- 3 -

5. 6.

- 4 -

7.

- 5 -

- 6 -

- 7 -

- 8 -

- 9 -

- 10 -

Product Specification Usable time (continuous use) Size of product Product weight Connect Battery Rated voltage Material (body) parts) Communication Operating Frequency The maximum RF Output Power Modulation Type Safety Warning Material

(cap, mouthpiece, electronic 170*40*40(mm) H*W*D 75g 1.5h Wireless communication 100mAh Lithium polymer 3.7v (Micro USB 5V, 77mA) Silicon ABS Bluetooth 4.0 BLE 2402MHz ~ 2480MHz

- 4.89dBm GFSK for BLE This radio equipment may cause radio interference and can not be used for personal safety related services. Risk of fire or explosion if the battery is replaced by an incorrect type. Dont disposal of a battery into fire or a hot oven or mechanically crushing or cutting of a b battery. Dont leaving a battery in an extremely high temperature surrounding environment. To avoid battery subjected to extremely low air pressure.

- 11 -

Company name : HUWANT Co.,ltd. Product name : Breathe-On Model name : Breathe-On(NB) Product date : 2020. Manufacturer : HUWANT Co.,ltd. Country : Republic of Korea FCC ID : 2AVSG-BREATHE-ONNB Constains FCC ID : QECGWBMD0X Republic of Korea Zip code : 41542 Tel : +82-53-324-2955 e-mail : huwant@naver.com Homepage : www.huwant.co.kr FCC REGULATORY DISCLOSURES Address : 203 Ho, 201 Dong, 40, Yeonam-ro, Buk-gu, Daegu, This device complies with Part 15 of the FCC`s 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 undesirable operation Note: This equipment has been tested and found to comply with the limit 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 encourage 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 experience radio/TV technician for help Change or modification not expressly approved by the party responsible for Compliance could void the users authority to operate the equipment Modifications not expressly approved by the party responsible for compliance could void the users authority to operate the equipment. This equipment complies with FCC radiation exposure limits set forth for an uncontrolled Caution environment.

Page 1 of 1 IDENTIFICATION LABEL:

PROPOSED FCC ID LABEL The FCC ID shall be permanently affixed in the rear side of the equipment FCC ID : 2AVSG-BREATHE-ONNB Contains FCC ID : QECGWBMD0X Authorized Person -

Date: March 13, 2020 Print Name: WOOKJIN LEE/ CEO & Founder Signature:

775 Montague Expressway Milpitas, CA 95035 Tel: 408-526-1188 Fax: 408-526-1088 Email: sales.eaw@us.bureauveritas.com Confidentiality Request Letter Revision History From Reason for Amendment (current / obsolete) Initial Release (obsolete) Adding CFR 2.459 (obsolete) Updated company template & Added text box Added IC confidentiality letter form (obsolete) Corrections to STC form. Added reference to KDB

(obsolete)

(obsolete) Updated company logo (current) 1.0 1.0 2.0 3.0 4.0 5.0 To 1.0 2.0 3.0 4.0 5.0 6.0 Approved Date Nov-14-2006 August 11 - 2008 Jan-31-2012 March-26-2015 Nov-19-2015 Jun-26-2019 SCS-F19: Confidentiality Request Letter Page 1 of 3 Rev 6.0 HUWANT Co.,ltd.

(March 13, 2020) To:

Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD Subject: Permanent Confidentiality Request for FCC ID: 2AVSG-BREATHE-ONNB Pursuant to sections 0.457 and 0.459 of CFR 47, we respectfully request permanent confidential treatment of the following Exhibits accompanying this application as:

Block Diagram Schematics Operational Description 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. The applicant understands that disclosure of this application and all accompanying documentation will not be made before the date of the Grant for this application. Sincerely, ______________________________ Clients signature Clients name / title : WOOKJIN LEE/ CEO & Founder Contact information / address : 203 Ho, 201 Dong, 40, Yeonam-ro, Buk-gu, Daegu, Republic of Korea Telephone: +821030762955 Fax No.: -

E-mail: huwant@naver.com SCS-F19: Confidentiality Request Letter Page 2 of 3 Rev 6.0 HUWANT Co.,ltd.

(March 13, 2020) To: Federal Communications Commission Office of Engineering and Technology Equipment Authorization Division 7345 Oakland Mills Road Columbia, Maryland 21046 Subject: Short Term Confidentiality Request for FCC ID: 2AVSG-BREATHE-ONNB To Whom It May Concern:

Pursuant to sections 0.457 and 0.459 of CFR 47, and to avoid premature release of sensitive information prior to marketing or release of the product to the public, the applicant requests the following documents contained in this certification application be temporarily withheld from public disclosure for an initial period of 45 days; or for a specified date of not to exceed 180 days from the Grant Date. See KDB 726920. or 180

User Manual Internal Photos Test Setup photos External Photos 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. Sincerely, ______________________________ Clients signature Clients name / title : WOOKJIN LEE/ CEO & Founder Contact information / address : 203 Ho, 201 Dong, 40, Yeonam-ro, Buk-gu, Daegu, Republic of Korea Telephone: +821030762955 Fax No.: -

E-mail: huwant@naver.com SCS-F19: Confidentiality Request Letter Page 3 of 3 Rev 6.0

HUWANT Co.,ltd. Date: March 13, 2020 To: BVCPS, INC. 775 Montague Expressway, Milpitas, CA 95035 USA RE: New Family Listing Declaration Please review the attached exhibits supporting our request for applying New Family Listing to the FCC ID: 2AVSG-BREATHE-ONNB for Company Name: HUWANT Co.,ltd. Product Description:

Breathe-On Base model: Breathe-On(NB) Additional model(s): Breathe-On(OB) The only difference between the base model Breathe-On(NB)and the additional model(s) Breathe-

On(OB)is as follows:

Two models have sensor board differences. These models are identical to basic model except for the sensor board. (Two models are identical in term of RF parameters) Sensor board B was mounted on the basic model(Breathe-On(NB)). Sensor board A was mounted on the additional model(Breathe-On(OB)). Should you have any questions, please contact us. Sincerely, ____________________________ Clients signature : HUWANT Co.,ltd. Clients name / title : WOOKJIN LEE/ CEO & Founder Contact information / address :

Telephone: +821030762955 Fax No.: -

E-mail: huwant@naver.com

Operation Description 1) Press the power button to turn on the power. 2) When the blue LED blinks slowly in the indicator window, the Bluetooth pairing is 3) Launch the Mobile Phone App to connect with the Bluetooth device. 4) After connecting, proceed as directed by the App. 1. Operation ready. 2. Principle 1) The pressure sensor measures the air pressure coming through the breathing port and transmits the measured value to external devices via Bluetooth or USB. 2) The power supply uses a built-in battery. 3) Charge the built-in battery with the power of Micro USB. 4) The power supply uses a built-in battery(3.7V, 100mAh, Li-Polymer). 5) Charge the built-in battery with the power of Micro USB. 6) If the Bluetooth Pairing does not work for about 3 minutes after turning it on, turn it off automatically.. 3. Specifications Operating Frequency : 2402MHz ~ 2480MHz The number of Hopping Frequencies : 40 The maximum RF Output Power : - 4.89dBm Modulation Type : GFSK for BLE Antenna Gain : 1.3 dBi Crystal : 16MHz & 32.768KHz Battery : 3.7V, 100mAh, Li-Polymer Charge : Micro USB 5V, 77mA Antenna Type : External Antenna Built in Case(Ceramic Antenna)

PCB Assy name Comment Designator Footprint Qty Breathe-On(OB) Breathe-On(NB) BT & with Battery BT & with Battery Breathe-On(NU) Breathe-On(OU) USB & with out Battery USB & with out Battery _Breathe-On R2 BOM 100nF/1005C 10uF/6.3V/1005C 33pF/1005C HEADER_3X2_2mm_DIP

[Molex]53261-0271 SRMU016

(ON-SEMI)SD12C

(LiteOn)LTST-S321TBKT BAS40W-05-7-F NSR0530HT1G/SOD-323 KHS02C YCDM4018T-6.8uH

(LiteOn)LTST-S326KGJR GWBMD0X SI1012R-T1-GE3 DTC014YMT2L/SOT-723 BSS84-7-F/SOT-23 100R/J/1005R 33R/J/1005R 47K/1%(F)/1005R 10K/1005R 150/1005R 330/1005R 0R/1005R 100K/1005R 2K/1%(F)/1005R 13K/1%(F)/1005R 10K/1%(F)/1005R

()YST-1112E(SMD) TPS61025DRC MCP73831T-2ACI-OT FT232RL LPS22HB HEADER_SOCKET/3X2/2mm/SMD 100nF/1005C SDP33 HEADER_SOCKET/3X2/2mm/SMD 100nF/1005C Main Sensor A Sensor B C1, C3, C4, C5, C6, C11, C15, C16, C2, C12, C13, C14 C7, C8 CON1 CON3 CON4 D1, D2, D5, D6 D3 D4 D7, D8 DSW1 L1 LED1 M1 Q1, Q9 Q2, Q4 Q3, Q5, Q8 R1, R2 R3, R4 R5, R13, R14 R6, R7 R8 R9, R10 R11, R21 R12, R15, R19, R20, R22 R16 R17 R18 SW1 U3 U4 U1 U2 CON2 C9, C10 U5 CON5 C17 0402C 0402C 0402C HEADER[3x2]_2_RA_REV MOLEX_53261_0271 MICRO USB_SRMU016 SOD-323 LTST-S326KGJRKT SC-70-3 SOD-323 DIP-SW-SMD02 YCDM4018T LTST-S326KGJRKT BT-GWBMD0X SC75-SC89 SOT-723 SOT23 0402R 0402R 0402R 0402R 0402R 0402R 0402R 0402R 0402R 0402R 0402R YST-1112E DRC_PACKAGE SOT23-5 SSOP28 LPS22HB HEADER_SOCKET/SMD 0402C SDP33 HEADER_SOCKET/SMD 0402C 8 4 2 1 1 1 4 1 1 2 1 1 1 1 2 2 3 2 2 3 2 1 2 2 5 1 1 1 1 1 1 1 1 1 2 1 1 1 8 4 2 1 1 1 4 1 1 2 1 1 1 1 2 2 3 2 2 3 2 1 2 2 5 1 1 1 1 1 1 1 1 1 2 8 4 2 1 1 1 4 1 1 2 1 1 1 1 2 2 3 2 2 3 2 1 2 2 5 1 1 1 1 1 1 1 1 1 1 8 4 2 1 1 1 4 1 1 2 1 1 1 1 2 2 3 2 2 3 2 1 2 2 5 1 1 1 1 1 1 1 1 1 1 8 4 2 1 1 1 4 1 1 2 1 1 1 1 2 2 3 2 2 3 2 1 2 2 5 1 1 1 1 1 1 1 1 1 2

Tel: 408-526-1188 Fax: 408-526-1088 Email: sales.eaw@us.bureauveritas.com 775 Montague Expressway Milpitas, CA 95035 Project and Product Certification Representative Authorization Letter Reason for Amendment (current / obsolete) Initial Release (obsolete) Revised wording (obsolete) Updated company template (obsolete) Updated letter information (obsolete) Added FCC ID field (obsolete) Updated company name & logo (current) Revision History From 1.0 1.0 2.0 3.0 4.0 5.0 To 1.0 2.0 3.0 4.0 5.0 6.0 Approved Date Nov-14-2006 Sept25-2007 Jan-31-2012 May-23-2014 Sep-16-2014 Jun-27-2018 SCS-F18: Project and Product Certification Representative Authorization Letter Page 1 of 2 Rev 6.0 HUWANT Co.,ltd.

(March 13, 2020) To: BVCPS, INC. 775 Montague Expressway, Milpitas, CA 95035 USA Dear Sir/Madam, Re: Product Certification Representative Authorization Letter We, _____ HUWANT Co.,ltd. _____ hereby authorize Bureau Veritas Consumer Product Services, Inc. to act as a Certification Body for certifying for the following project(s):

FCC ID: 2AVSG-BREATHE-ONNB Product Description: Breathe-On Model: Breathe-On(NB) Multiple model: Breathe-On(OB) Sincerely, ______________________________ Clients signature Clients name / title : WOOKJIN LEE/ CEO & Founder Contact information / address : 203 Ho, 201 Dong, 40, Yeonam-ro, Buk-gu, Daegu, Republic of Korea Telephone: +821030762955 Fax No.: -

E-mail: huwant@naver.com SCS-F18: Project and Product Certification Representative Authorization Letter Page 2 of 2 Rev 6.0