FCC ID: 2BBUE-RCII-SPINTSO BLUETOOTH INTERCOM HEADSET

Issued by: John Hgstrm DATE: 2023-06-15 REFCOM II, User Manual Version 1.0A Page 1(8) Issued by: John Hgstrm DATE: 2023-06-15 Table of Contents:

SPINTSO REFCOM II, User Manual ......................................................................................................... 1 1. General ........................................................................................................................................ 3 2. Sections ....................................................................................................................................... 3 3. Overview ...................................................................................................................................... 4 4. Generic functions/features ......................................................................................................... 4 5. Handling....................................................................................................................................... 4 5.1. Activation................................................................................................................................. 4 5.2. Indications ............................................................................................................................... 4 5.2.1. LEDs ..................................................................................................................................... 4 5.2.2. Recorded voice .................................................................................................................... 5 5.3. Pairing ...................................................................................................................................... 5 5.4. LED Indications ........................................................................................................................ 5 5.4.1. Radio pairing mode ............................................................................................................. 5 5.4.2. Pairing .................................................................................................................................. 5 5.4.3. Connected state .................................................................................................................. 5 5.4.4. Not connected state ............................................................................................................ 5 5.5. Radio Connect ......................................................................................................................... 6 5.5.1. Connecting radios ................................................................................................................ 6 5.5.2. Disconnect in connected mode ........................................................................................... 6 5.5.3. Automatic re-connect. ........................................................................................................ 6 5.6. Volume control ........................................................................................................................ 6 5.7. Audio Menu ............................................................................................................................. 6 5.7.1. Battery status ...................................................................................................................... 6 5.7.2. Key-click sounds. ................................................................................................................ 6 5.8. Charging ................................................................................................................................... 7 5.8.1. Operational time ................................................................................................................. 7 6. Interfaces ..................................................................................................................................... 7 6.1. Headset .................................................................................................................................... 7 6.1. Charging & Data....................................................................................................................... 7 6.2. Antenna ................................................................................................................................... 7 7. Label ............................................................................................................................................ 7 8. Charging Cable ............................................................................................................................. 7 Version 1.0A Page 2(8) Issued by: John Hgstrm DATE: 2023-06-15 1. General The new Spintso Refcom II radio system is developed by Referees for Referees and is optimized for use in both indoor and outdoor sports environments. 2. Sections 4. Overview 5. Generic functions/features 6. Handling 7. Interfaces 8. Label 9. Charging cable Version 1.0A Page 3(8) Issued by: John Hgstrm DATE: 2023-06-15 3. Overview REFCOM Red LED. Green LED Volume up /

Menu up button. Volume down

/ Menu down button. Pairing /Confirm button. Menu button. USB-C Connector

. Headset Connector

. 2-4 users with full duplex audio. Easy initial set-up by assigning each radio an individual id nr. (1-4) 4. Generic functions/features

- Optimized for Referees

- Open speech conference with high performance wind & ambient noise reduction.

- Automatic whistle sound level limitation.

- Compatible with both Spintso standard in-ear headset & Twistlock premium headsets

- Bluetooth 5.1 standard encryption.

- Customized high performance internal antenna solution. Line of site range ~800m

- Connects automatically at each match after power-on.

License Free 2.4GHz radio band, CE, UKCA, FCC, GITEKI.

- Battery level announcement at start-up (High, Medium, Low)

- Operational Time 10+h

- Operating Temperature -10 to + 45 C

- Climatic environment IP54. Waterproof 3,5mm audio and USB-C connectors.

- weight: 58g

Future proof by SW upgrades through USB. Size: (51 x 20 x 82 mm) 5. Handling 5.1. Activation

- Radios are started up by pressing down Volume up and Volume down buttons at the same time for 1 second.

- Radios are deactivated by pressing Volume up and Volume down buttons at the same time for 2 seconds. 5.2. Indications 5.2.1. LEDs

- At start-up and power off, both LEDs activates for 2 seconds. During normal operation the LEDs indicates the current status. Version 1.0A Page 4(8) Issued by: John Hgstrm DATE: 2023-06-15 5.2.2. Recorded voice

- At start-up the current applicable settings and status is presented in the headset. For example:

Radio designation number (Radio [1-4]) Battery Level (BATTERY [HIGH/NORMAL/LOW/EMPTY]) Headset type (LITE HEADSET/TWISTLOCK HEADSET) 5.3. Pairing

Pairing procedure is performed using the confirm button and the audio Menu. Press the confirm button for 6 seconds on each radio to clear the pairing history and to set the radios into radio pairing mode. Access the audio menu on each radio one at a time by pressing the MENU-button. Press MENU-button again to assign each radio an individual number (1-4) Change number by pressing the +/- buttons. Confirm the selected number by pressing down the confirm button. The pairing can be started when all radios have been set-up with their individual number. Press the confirm button for 2 seconds on the radio assigned to RADIO 1. All radios will pair automatically in sequence. 5.4. LED Indications 5.4.1. Radio pairing mode 5.4.2. Pairing Radio pairing mode state is indicated by both LEDs being continuously active. While pairing the green LED blinks 2 times per second at a 50% duty cycle. The red LED remains continuously active until successful pairing. 5.4.3. Connected state a. One connected radio is indicated by a single blink. b. Two connected radios are indicated by a double-blink. c. At low battery, the red LED shall activate. d. The LED blinking is synchronized and moves from radio 1 to radio 4. 5.4.4. Not connected state When not connected the green LED blinks 1 time per second at a 50%

duty cycle. Version 1.0A 900-1000ms Page 5(8) Issued by: John Hgstrm DATE: 2023-06-15 5.5. Radio Connect 5.5.1. Connecting radios Radios that have been previously paired, connects automatically after start-up. At connect the recorded voice says CONNECT RADIO X on each radio. All connected radios LEDs indicates connected mode in synchronization. 5.5.2. Disconnect in connected mode

- Disconnect only occur when out of range, or if a radio is turned off. At disconnect, the recorded voice says RADIO X LOST on the applicable radio, and the applicable LED indicates accordingly. If losing one of two radios, the radio indicates connected to one radio. if losing all radios, the radio indicates not connected. 5.5.3. Automatic re-connect.

If radios disconnect during normal operation because of poor radio connection or by being out of range, the radios automatically re-connect when the radios are back within operational range. 5.6. Volume control The earphone volume can be adjusted in 12 steps. Changing of the volume level is indicated be beep sounds. A high pitch beep sound indicates reaching the highest or the lowest volume setting. 5.7. Audio Menu

The radio features an audio menu for setting different options. For example, selection of preferred headset model or radio number.

- Menu button is pressed to access menu mode.

- Volume buttons are used to change a setting.

- Confirmation button is used to confirm the selected setting.

Pressing the menu button several times, steps between the menu options. Exit menu to normal operation i.e. Volume buttons go back to changing volume, is done after confirming a selection, or automatically after three seconds if not pressing any buttons. A selected parameter is not stored if exit menu occurs automatically after the three second time-out. 5.7.1. Battery status When in normal operation, pressing and releasing the Bluetooth button within 2 seconds activates a battery status message. (Battery High, Battery normal, battery low, battery empty) 5.7.2. Key-click sounds. When pressing a button, a brief key-click sound shall be presented in the headset. Version 1.0A Page 6(8) Issued by: John Hgstrm DATE: 2023-06-15 5.8. Charging

- Charging is indicated by the red LED being active.

- Charging finished in radio off state is indicated by turning the red LED off and turning the Green LED on.

- Charging finished in radio on state is indicated by turning the red LED off. The green LED indicate status normally.

- Charging time is less than 4h. 5.8.1. Operational time Operational time with a fully charged battery is at least 10h under the following conditions: Maximum radio transmission power, 10% speaking time, and 0 degrees Centigrade ambient temperature. 6. Interfaces 6.1. Headset The headset interface features a waterproof 4-pole 3,5mm headset connector. It is compatible with the SPINTSO SwiftFit headset and the Spintso provided Twistlock headset. 6.1. Charging & Data The charging interface features a Waterproof USB-C connector. This interface also handles upgrades of the radio firmware. 6.2. Antenna The radio features a calibrated internal antenna that provides optimal radio range and signal quality. 7. Label

The radios features a free submerged area on the back where a label that displays the radio designated number and the Referee role can be attached. For example: RADIO 1, AR2, RADIO 2, REFEREE, RADIO 3, AR1 8. Charging Cable

The Refcom radios are charged from a normal USB-C cable that connects to a standard USB A power outlet. The cable provides for charging and data communication. FCC:

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. MANUFACTURE:

Shenzhen NOECI Technology Co.,Ltd B2-1803, China Merchants Smart City ,Guanguang Road,fenghuang street, Guangming district, Shenzhen city, Guangdong province, China Version 1.0A Page 7(8) Issued by: John Hgstrm DATE: 2023-06-15 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 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 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 experienced radio/TV technician for help Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. 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. Version 1.0A Page 8(8)

Section 2.911(d)(7) USA Agent for Service of Process Company name: SPINTSO AB Address: Drottninggatan 33, 11151 Stockholm, Sweden Product Name: BLUETOOTH INTERCOM HEADSET FCC ID: 2BBUE-RCII-SPINTSO Model(s): REFCOM II, REFCOM, REFCOM I, REFCOM II PRO, REFCOM III, REFCOM PRO 2.911(d)(7) USA Designated Agent for Service of Process We, [SPINTSO AB] (the applicant) designate [Third Team Store LLC] NOTE1 for the purpose of accepting service of process on behalf of the applicant. Applicant consent: We Acknowledge our consent to accept service of process in the United States for matters related to the applicable equipment, and at the physical U.S. address and email address of the designated agent and acknowledge our acceptance of our obligation to maintain an agent for 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. Agent obligation: We Acknowledge our obligation to accept service of process in the United States for matters related to the applicable equipment at our physical U.S. address and email address 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. USA Agent Company name: Third Team Store LLC Address: 1825 Ponce de Leon Suite 809 Coral Gables, FL 33134 FRN0033958406 Contact Name: Matt Collier Telephone No: +1 305.797.8898 Email: matt@thirdteam.com Applicant Company name: SPINTSO AB Address: Box 3113, 10362 Stockholm ,Sweden Contact Name: Nicklas sth Telephone No: +46733103138 Email: nicklas.osth@spintso.com Signature: Matthew Collier Title: President Signature: Nicklas sth Title: CEO 2.911 (d)(7)USA Agent v1.2 Internal Date: 07/05/2023 Date: 2023-07-03 NOTE 1: An applicant located in the United States may designate itself as the agent for service of process. Reference; Federal Register document 2022-28263 published on 02/06/23 https://www.federalregister.gov/documents/2023/02/06/2022-28263/protecting-against-

national-security-threats-to-the-communications-supply-chain-through-the Internal 2.911 (d)(7)USA Agent v1.2

SPINTSO AB Drottninggatan 33, 11151 Stockholm Sweden Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: Jun. 28, 2023 Ref: Attestation Statements Part 2.911(d)(5)(i) Filing FCC ID: 2BBUE-RCII-SPINTSO Product Name: BLUETOOTH INTERCOM HEADSET Model Name: REFCOM II, REFCOM, REFCOM |, REFCOM II PRO, REFCOM III, REFCOM PRO

[SPINTSO AB] (the applicant) certifies that the equipment for which authorization is sought is not covered equipment prohibited from receiving an equipment authorization pursuant to section 2.903 of the FCC rules. Sincerely, Nicklas Oth 2022].

(Applicant signature) Name: Nicklas Osth Title: CEO

SPINTSO AB Drottninggatan 33, 11151 Stockholm Sweden Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: Jun. 28, 2023 Ref: Attestation Statements Part 2.911(d)(5)(ii) Filing FCC ID: 2BBUE-RCII-SPINTSO Product Name: BLUETOOTH INTERCOM HEADSET Model Name: REFCOM II, REFCOM, REFCOM I, REFCOM II PRO, REFCOM III, REFCOM PRO

[SPINTSO AB] (the applicant) 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, N. ibe (hich 20r.7.]

(Applicant signature) Name: Nicklas Osth Title: CEO

SPINTSO AB Drottninggatan 33, 11151 Stockholm Sweden Agent Authorization Company: SPINTSO AB Address: Drottninggatan 33, 11151 Stockholm Sweden Product Name: BLUETOOTH INTERCOM HEADSET Model Number(s): REFCOM II, REFCOM, REFCOM I, REFCOM II PRO, REFCOM III, REFCOM PRO Product Description: BLUETOOTH INTERCOM HEADSET 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 effect as acts of our own. Signature:

Name:

Nicklas Osth Title:

CEO Company: SPINTSO AB Date: Jun. 28, 2023

SPINTSO AB Drottninggatan 33, 11151 Stockholm Sweden Jun. 28, 2023 Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Subject: Explanation of differences between product types FCC ID: 2BBUE-RCII-SPINTSO Models: REFCOM II, REFCOM, REFCOM I, REFCOM II PRO, REFCOM III, REFCOM PRO To Whom It May Concern:

We, The SPINTSO AB hereby declare that the model : REFCOM II is identical with the model : REFCOM, REFCOM I, REFCOM II PRO, REFCOM III, REFCOM PRO, except the model name. Except for the different above, no other modification is performed. Sincerely, SPINTSO AB Signature:

[Nicklas Osth, CEO]

SPINTSO AB Drottninggatan 33, 11151 Stockholm Sweden Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Date: Jun. 28, 2023 Subject; Request for Confidentiality FCC ID: 2BBUE-RCII-SPINTSO To Whom It May Concern, Pursuant to the provisions of the Commissions 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. XX] Schematic Diagram XX] Block Diagram Operational Description Parts List In additional to above mentioned documents, in order to comply with the marketing regulations in Title 47 CFR 2.803 and the importation rules in Title 47 CFR 2.1204, while ensuring that business sensitive information remains confidential until the actual marketing of newly authorized devices, we request Short Term Confidentiality of the following attachment(s);

[_] External Photos

[_] Test Setup Photos

[_] Internal Photos

[_] User Manual

[_] For 45 days, pursuant to Public Notice DA 04-1705. OR

[_] For 180 days pursuant to KDB 726920 D01. 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: Nio Las (. a cael Name: Nicklas Osth Title: CEO