FCC ID: 2AL6N-ST-BTIN003L SMART INSOLE

How to use Please follow the below guide to use the insoles properly 1 Charge insoles First time to use? Please charge at least 30 minutes before use. 1) Connect the wireless charging pad to the electrical power adapter with the included electrical charging cable. 2) Power adapter is not included, and it is recommended to use the product rated voltage for 5V, 1.5~3A. 3) When you place the back-heel part of insoles on the charging pad, the side LED shows the charging status.

- LED slow ashing : Charging standby

- LED fast ashing : Charging

- LED is on : Fully charged 2 Download application Through the QR link, you can download and use the various apps we provide. 3 Connection between insoles and application 1) Place your charged insoles into shoes and turn on the Bluetooth. 2) When you run the downloaded application, you will see the connection guides provided. 3) Follow the guide until calibration process and it will complete the connection process. We recommend the calibration process at least once in a month for the accurate measurement. Fitting guide Take out the insoles of shoe and cut it to the same size. Please be careful not to cut over the bottom line that marked on the product. If sensor is damaged, it may not work. 4 Enjoy smart insoles 1) Now you can check the proper posture balance and get the recommended exercise from the application provided by SALTED. You can charge the insoles without taking out them from the shoes. Our insoles are optimally designed for charging while insoles are inside of shoes. 2) If smart insoles are unused for a long time, please charge before use. You can check the battery level on the applications. The battery of insoles can last 7 days for standby mode and 3 days for continuous use.

(Usage periods can be varied depends on the condition of the product) Specications Please note the technical information

- Transmission/reception frequency: Bluetooth(BLE): 2402MHz ~ 2480MHz Bluetooth(BLE) Class2 Max: 4dBm

- Supply voltage: DC 3.7V(Battery)

- Operating temperature: -10 ~ +50

- Wireless charging pad rating: 5V, 1.5A or more Insoles may have possibility of radio interference. Product certication Our product is certied in various regions

- Model name: ST-BTIN003L / ST-BTIN003R / ST-WPAD001

- Company name: SALTED Co., Ltd.(https://www.salted.ltd)

- Name of apparatus: A wireless data-communication device which is used for system.

- Manufacturing date: Marked separately

- Manufacturer: SALTED Co., Ltd.

- Manufacturing country: MADE IN KOREA

- FCC Certied number 2AL6N-ST-BTIN003L / 2AL6N-ST-BTIN003R / 2AL6N-ST-WPAD001

- KC Certied number R-R-IOF-ST-BTIN003L / R-R-IOF-ST-BTIN003R / R-R-IOF-ST-WPAD001 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. Note: 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 com-

munications. 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 o 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 dierent from that to which the receiver is connected. Consult the dealer or an experienced radio/TV technician for help. Modications not expressly approved by the manufacturer could void the user's authority to operate the equipment under FCC rules. Precautions Please note the precaution to prevent the damages

- Please use the insoles after reading this manual.

- Be careful of sizing of the insoles, otherwise measurement data can be inaccurate.

- We recommend to wear the shoes sizes a bit bigger (<5mm) for a wear of comfort.

- Bluetooth connectivity can be varied depending on the surrounding conditions.

- Please be aware of metallic, magnetic materials (>20cm) near wireless charging pad. It could interrupt the charging or product may not work.

- Please use proper power adapter or wall charger with provided charging cable.

- Do not connect the charging cable directly to USB port on laptop or PC. It may damage or degrade the products.

- If you need to restart or turn o the insoles for the occasional uses, please follow the below process. Please note that wireless charging pad is needed to turn the insoles on. Turn o the insoles 1) Flip the insoles and press hard the heel part with using a thumb and index nger. 2) If you hold pressing for 10 seconds, there will be a vibration. 3) Insoles will be turned o when it is ipped again. 4) Please place the insoles on the wireless charging pad to turn them on. Please be aware of below precautions

- Please wear the insoles with proper using purpose, otherwise it may occur the risk of injury and product life can be shortened.

- The product may be damaged if used in salty places such as at the beach.

- If the product has been wet from snow, rain or sweat, and you have hand washed the product, turn the product over and dry it suciently in the shade.

(at least 7 days recommended)

- Be careful not to get water around the charging port as much as possible.

- Store in a clean place out of direct sunlight and humidity.

- Store in a place not exposed to corrosive gases.

(chlorine, ammonia, sulfur dioxide, hydrogen sulde, etc.). Keep away from heat /

electric / magnetic waves. Do not twist or impact product. Do not keep product inside a car during hot days. Precautions Please note washing guide below

- Before washing the product, be sure to turn o the power in the app settings.

- When washing the product, avoid using a washing machine or dryer, and wash it lightly by immersing it in stagnant water.

- Do not use alcohol or neutral detergent to clean the product.

- Please note that twisting or bending the product during washing may damage the product.

- Customers are responsible for product damage caused by excessive washing, and we are not responsible for product damage caused by washing.

- After washing, dry it suciently. Warranty We provide 6 months warranty for customers If there is a product issue after purchasing the product, we will exchange or repair the product in accordance with the Consumer Damage Compensation Regulations. Product Guarantee months A limited 6 months warranty Guarantee insurance Product quality assured through strict quality control and inspection. In case of manufacturing defects or defect under normal use within 6 months of purchase, refurbished product will be sent. Additional cost may occur depending on the cause of product defect and degree of damage. For exchange/refund; enclose your receipt when returning the product. Pre-purchase customer; date will be counted based on the product batch number. Packaging Below items are included in a package Pair of insoles Wireless charging pad USB-C User Manual Smart Insole User Guide Customer Support Exchange / Refund / Fix / CS Unopened products can be exchanged or refunded within 7 days of purchase. In the case of an exchange/refund due to a customer's simple change of mind, the return shipping fee will be paid by the customer. Please provide your purchase ID and receipt to conrm the date of purchase. Business hours: KST 10:00 ~ 17:00(Weekdays only) Customer Center: +82-2-552-0815 E-mail: cs@salted.ltd SALTED Co., Ltd.

SALTED | 5-81Nn003. MADE IN KOREA Rating: 3.7V / 200mA FCC ID: 2AL6N-ST-BTINOO3L KC: R-R-IOF-ST-BTINOO3L ie Ce

Salted Co., Ltd. 6F, 603, Eonju-ro, Gangnam-gu, Seoul, Republic of Korea Tel: +82-10-9770-5363, Fax: +82-2-558-0815 Date: September 14, 2022 Federal Communications Commission Authorization and Evaluation Division Confidentiality Request regarding application for certification of FCC ID: 2AL6N-ST-BTIN003L Pursuant to Sections 0.457 and 0.459 of the Commissions Rules, we hereby request confidential treatment of information accompanying this application as outlined below:

PERMANENT Exhibit Type Part List Schematics Diagram(s) Operation description Block diagram File Name Part List.pdf Schematic.pdf Operation description.pdf Block diagram.pdf And 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 pursuant to Section 0.457 of the Rules, disclosure of this application and all accompanying documentation will not be made before the date of the Grant for this application. Sincerely, KyungHoon Kang / VP of Development Salted Co., Ltd.

Salted Co., Ltd. 6F, 603, Eonju-ro, Gangnam-gu, Seoul, Republic of Korea Tel: +82-10-9770-5363, Fax: +82-2-558-0815 Date: September 14, 2022 Federal Communications Commission 7435 Oakland Mills Road Columbia MD 21046 FCC ID : 2AL6N-ST-BTIN003L To whom it may concern:

I, the undersigned, hereby authorize Young-Jin, Lee of KES Co., Ltd. and hereafter referred to as KES Co., Ltd., to act on our behalf in all manners relating to application for equipment authorization, including signing of all documents relating to these matters. Any and all acts carried out by Young-Jin, Lee of KES Co., Ltd. on our behalf shall have the same effect as acts of our own. I, the undersigned, hereby certify that we are not subject to a denial of federal benefits, that includes FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. 853(a). In authorizing KES Co., Ltd. as our agent, we still recognize that we are responsible to:

a) b) c) d) e) f) g) comply with the relevant provisions of the certification program;

make all necessary arrangements for the conduct of the evaluation, including provision for examining documentation and access to all areas, records (including internal audit reports) and personnel for the purposes of evaluation (e.g. testing, inspection, assessment, surveillance, reassessment) and resolution of complaints;

make claims regarding certification only in respect of the scope for which certification has been granted;

do not use our product certification in such a manner as to bring the Certification Division into disrepute and not make any statement regarding our product certification which the Certification Division may consider misleading or unauthorized;

upon suspension or cancellation of certification, discontinue use of all advertising matter that contains any reference thereto and return any certification documents as required by the Certification Division;

use certification only to indicate the products are certified as being in conformity with specified standards;

endeavor to ensure that no certificate or report nor any part thereof is used in a misleading manner;

Salted Co., Ltd. 6F, 603, Eonju-ro, Gangnam-gu, Seoul, Republic of Korea Tel: +82-10-9770-5363, Fax: +82-2-558-0815 h) i) j) ensure that any reference to our product certification in communication media such as documents, brochures or advertising, complies with the requirements of the Certification Division;

keep a record of all complaints made known to the us relating to the products compliance with requirements of the relevant standard and to make these records available to the Certification Division when requested;

take appropriate action with respect to such complaints and any deficiencies found in products or services that affect compliance with the requirements for certification;

k) document the actions taken. This authorization is valid until further written notice from the applicant. Sincerely Yours, KyungHoon Kang / VP of Developmen Salted Co., Ltd. REMARK:

1. This authorization letter will be sent along with your application when filing with the Certification Division. Please follow the format and type it on company letterhead and send original to us. 2. 3. Authorized signature must be in agreement with grantee code contact in FCC database.