2BBUE-S2PROSPINTSO REFEREE WATCH S2 Pro

Section Company n Address: O Product Na FCC ID:2B Model(s):S 2.911(d)(5 We, [SPIN T through cer  Pro  Ide n Yours sinc e Name: Nic k Title: CEO Company n Signature: NOTE 1 “Covered List https://www.f c References; 1) 986446 D 0 https://apps.fc 2) Federal R e https://www.fe munications-s 2.911(d) name: SPIN Ovre Slottsg ame: SPINT BUE-S2PR 2 Pro, S2 P 5)(i) Equip TSO AB] (“t rtification is hibited fro m ntified as an erely, klas Osth name: SPIN ”; is the List o cc.gov/supplyc 01 Covered Eq cc.gov/oetcf/kd egister docume ederalregister. supply-chain-t )(5)(i) Ce NTSO AB atan 6, 75 3 TSO REFER RO Pro Lite, S2 ment Type he applican not: m receiving n equipmen NTSO AB of Equipment a chain/covered quipment v01 db/forms/FTS ent 2022-2826 gov/documen hrough-the SP ertificatio 3 10 Uppsal REE WATC Pro X, S3 P e nt”) certify th an equipme nt type in the and Services C list SearchResul t 63 published o nts/2023/02/06 PINTSO on – Equi a, Sweden H S2 Pro Pro, G6 hat the equi ent authoriz e “Covered Covered By S tPage.cfm?sw on 02/06/23 6/2022-28263/ AB 2. ipment T ipment for w zation pursu List” NOTE 1 ection 2 of Th witch=P&id=32 /protecting-ag 911 (d)(5)(i) Eq Type which autho uant to § 2.9 Date: Ja e Secure Netw 5672 ainst-national - quipment Type A orization is s 903; of the F an. 27, 202 works Act, ava -security-threa Attestation v1.2 sought FCC rules. 6 ailable at ats-to-the-com 2 m

Section Company n Address: O Product Na FCC ID: 2B Model(s):S 2.911(d)(5 ) We, [SPINT applicant is chapter, as Yours sinc e Name: Nic k Title: CEO Company n Signature: NOTE 1 Delete option NOTE 2 “Covered List https://www.f c References; 1) 986446 D 0 https://apps.fc 2) Federal Re https://www.fe munications-s 2.911(d) name: SPIN Ovre Slottsg ame: SPINT BBUE-S2PR 2 Pro, S2 P )(ii) Applica TSO AB] (“t s not identi an entity p erely, klas Osth name: SPIN not applicable ”; is the List o cc.gov/supplyc 01 Covered Eq cc.gov/oetcf/kd egister docume ederalregister. supply-chain-t )(5)(ii) Ce NTSO AB atan 6, 75 3 TSO REFER RO Pro Lite, S2 ant filing he applica n fied NOTE 1 on roducing co NTSO AB e to this applic of Equipment a chain/covered quipment v01 db/forms/FTS ent 2022-2826 gov/documen hrough-the SP ertificatio 3 10 Uppsal REE WATC Pro X, S3 P nt”) certify th n the “Cove overed com cation. and Services C list SearchResul t 63 published o nts/2023/02/06 PINTSO on – App a, Sweden H S2 Pro Pro, G6 hat, as of th ered List” NOT mmunication Covered By S tPage.cfm?sw on 02/06/23 6/2022-28263/ AB plicant (C he date of th TE 2 ,establish s equipmen Date: ection 2 of Th witch=P&id=32 /protecting-ag 2.911 (d)(5 Covered L he filing of th hed pursua nt. Jan. 27, 2 0 e Secure Netw 5672 ainst-national - 5)(ii) Applicant A List ) he applicati nt to §1.500 026 works Act, ava -security-threa Attestation v1.3 ion, the 002 of this ailable at ats-to-the-com 3 m

Co m Ad d Pr o Mo d Pr o We act We an d issu our Sig Na m Title Com mpany:SPI dress: Ovre oduct Name del Numbe oduct Desc authorize M on our beha declare tha d certificatio ues concern behalf shal nature: me: e: mpany: NTSO AB eSlottsgatan e:SPINTSO er(s):S2 Pro ription:SPI MiCOM Lab alf on all ma at MiCOM L n of equipm ning the app ll have the s Nicklas O CEO SPINTSO Agen n 6, 753 10 O REFEREE o, S2 Pro Lit INTSO REF bs Inc., 575 atters conce Labs Inc. is ment to the r proval applic same effect Osth AB SPINTS nt Auth Uppsala, S E WATCH S te, S2 Pro X FEREE WAT Boulder Co erning the c allowed to f regulatory a cation. Any t as acts of SO AB horizat Sweden S2 Pro X, S3 Pro, G TCH S2 Pro ourt, Pleasa certification forward all i agencies as and all acts our own. ion G6 o anton, Califo of above na information s required a s carried ou Date: ornia 94566 amed equip related to t nd to discu ut by MiCOM Jan. 27, 20 6, USA, to pment. the approva ss any M Labs on 026 al

Office o Federa 7435 O Columb USA Subjec t FCC ID To Wh o Pursua are req u docume These d propriet might b In addi t in Title busine s authoriz For 4 O For 1 It is ou r corresp docume authoriz Sincer e Signat u Name: N Title:C E of Engineeri l Communic Oakland Mills bia, MD 210 t; Request f D:2BBUE-S2 om It May C nt to the pro uesting the ents from pu documents tary informa be harmful to Schemat Block Di Parts Lis Operatio Tune-up tional to abo 47 CFR §2 ss sensitive zed devices External Test Set Internal P User Ma 45 days, pu OR 180 days pu r understand pondence du ents and thi zation is iss ely, ure: Nicklas Osth EO ing Techno cations Com s Road 046 for Confiden 2PRO Concern, ovisions of t Commissio ublic disclos contain det ation in ope o our comp tic Diagram agram st onal Descrip Procedure ove mention .803 and th informatio n s, we reque Photos tup Photos Photos anual rsuant to P u ursuantto KD ding that all uring the ce s informatio sued. h S logy mmission ntiality the Commis on to withho sure indefin tailed syste ration of th e any and wo m ption ned docume e importatio n remains c st Short Te ublic Notice DB 726920 l measurem ertification re on will be av PINTSO ssion’s rule old the follow nitely. m and equi e equipmen ould give co ents, in orde on rules in T confidential rm Confide e DA 04-170 0 D01. ment test rep eview proce vailable for O AB s Title 47 S wing attach pment desc nt. The publ ompetitors a er to comply Title 47 CFR until the act ntiality of th 05. ports, FCC ess cannot public revi e Sections §0. hment(s) as criptions an ic disclosu r an unfair ad y with the m R §2.1204, tual market he following ID label for be granted ew once the Date: Jan. 457 and § 0 confidentia d are consi re of these d vantage in marketing re while ensu ting of newly attachmen mat and as confide n e grant of eq 27, 2026 0.459, we al dered as documents the market . egulations ring that y t(s); ntial quipment .

To W We, S2 P only Test Ple a Sig Na m Title Whom It May SPINTSO A Pro Lite, S2 P y with produc t sample mo ase contact m nature: me: N e: C Mo y Concern, AB(SPINTSO Pro X, S3 Pr ct model nam del:S2 Pro. me if you hav Nicklas Os CEO S odel Di O REFEREE ro, G6;All mo med different. ve any quest th SPINTS fferenc WATCH S2 odel's the fun . tion. SO AB ce Dec Pro);Trade nction, softwa claratio Mark: Spints are and elect Date: on so;ModelNum tric circuit are Jan. 27, 20 mber:S2 Pro, e the same, 026 ,

FCC ID LABEL: Ca. 30mm x 10mm Label Location FCC ID: 2BBUE-S2PRO

FCC RF Exposure EUT Description: SPINTSO REFEREE WATCH S2 Pro Model No.: S2 Pro FCC ID: 2BBUE-S2PRO 1. Limits According to KDB 447498 D01 General RF Exposure Guidance v06 The 1‐g and 10‐g SAR test exclusion thresholds for 100 MHz to 6 GHz at test separation distances ≤50 mm are determined by: [(max power of channel, including tune‐up tolerance, mW)/(min. test separation distance, mm)]ꞏ[√f(GHz)]≤3.0 for 1‐g SAR and ≤ 7.5 for 10‐g extremity SAR, Where: Result=P/D*√F F= the RF channel transmit frequency in GHz P=Maximum turn‐up power in mw D=Min. test separation distance in mm 2. Test Result of RF Exposure Evaluation Mode Frequency (MHz) Output power (dBm) Tune Up Power (dBm) Max Tune Up power (mW) Min test separati on distance mm Result Limit SAR Test Exclusion EDR 2480 3.73 3±1(4) 2.512 5 0.791 3.0 Pass BLE 2480 7.11 6.5±1(7.5) 5.623 5 1.771 3.0 Pass Note: PK Output power= conducted power. Conducted power see the test report HK2509285462-1E/2E, antenna gain=-11.7dBi Per KDB 447498 D01, when the minimum test separation distance is < 5 mm, a distance of 5 mm is applied to determine SAR test exclusion. The test exclusion threshold is 1.771 which is<= 3, SAR testing is not required. Note: Exclusion Thresholds Results=[(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance, mm)] ꞏ[√f(GHz)] f(GHz) is the RF channel transmit frequency in GHz Distance=5mm

Project:G6 S2PRO Author: Haiou.Zhu File Name: S2PRO_APP_A.doc Date: 2025-12-18 Revision: A CONFIDENTIAL Shenzhen OnePlusOne Wireless Communication Technology Co.,Ltd. Page 1 of 6 深圳市一加一无线通讯技术有限公司 7th Floor, Building B1, Hangcheng Jinchi Industrial Park, Hangcheng Street, Baoan District, Shenzhen City. 承认书 APPROVAL SHEET 客户 Customer 爱保护 项目名 Project S2pro 蓝牙天线 料号 Part NO. 规格 Specification BT Antennas Project:G6 S2PRO Author: Haiou.Zhu File Name: S2PRO_APP_A.doc Date: 2025-12-18 Revision: A CONFIDENTIAL Shenzhen OnePlusOne Wireless Communication Technology Co.,Ltd. Page 2 of 6 Date: Revision: Updates and changes: Issued by: 20251218 A Initial sheet Haiou.Zhu Contents 1 ANTENNA DESCRIPTION ................................................................................ 1-3 1.1 Part number .................................................................................... 1-3 2 ELECTRICAL PERFORMANCE ........................................................................ 2-3 2.1 Specification .................................................................................... 2-3 2.2 Measurement Set-up ....................................................................... 2-3 2.2.1 VSWR and Return Loss ................................................................................................................... 2-3 2.2.2 Efficiency and Gain .......................................................................................................................... 2-3 3 REFERENCE MEASUREMENT DATA ............................................................. 3-3 3.1 Passive .............................................................................................. 3-3 3.2 Active ............................................................................................... 3-4 4 MECHANICAL DESCRIPTION .......................................................................... 4-5 4.1 Drawings .......................................................................................... 4-5 APPROVAL OnePlusOne: RF Check ME Check QC Check Confirm By Customer: EE Check PM Check QC Check Confirm By 承认鉴章后请寄回承认书一份 Please return to us one copy of “APPROVAL SHEET” with your approved signatures Project:G6 S2PRO Author: Haiou.Zhu File Name: S2PRO_APP_A.doc Date: 2025-12-18 Revision: A CONFIDENTIAL Shenzhen OnePlusOne Wireless Communication Technology Co.,Ltd. Page 3 of 6 1 Antenna description It summarize BT antennas for project S2PRO .BT antenna’s frequency band is 2400-2500MHz. BTantenna’s type is 单级 1.1 Part number Part number of antenna： S2PRO 蓝牙天线 2 Electrical Performance 2.1 Specification BT Frequency Range 2400MHz~2500MHz <-5 >15% Return Loss Efficiency 2.2 Measurement Set-up 2.2.1 VSWR and Return Loss VSWR measurements (S 11 ) were performed using an Agilent ENA series Network Analyzer and the previously described test fixture. Coaxial chokes were used to mitigate surface currents on the outside of the cabling. The testing was performed in free space. 2.2.2 Efficiency and Gain The gain of the antenna was measured in OPO’s 3D anechoic chamber in Shenzhen, China. The chamber is a ETS system capable of doing tests from 380MHz to 6GHz. Coaxial chokes on the feed cable were used to mitigate surface currents during passive tests. The measurement results are calibrated using dipole standards. For TRP and TIS the chamber uses a 8960 / MT8820C to establish the connection with the mobile device and read the power. 3 Reference measurement data 3.1 Passive Project:G6 S2PRO Author: Haiou.Zhu File Name: S2PRO_APP_A.doc Date: 2025-12-18 Revision: A CONFIDENTIAL Shenzhen OnePlusOne Wireless Communication Technology Co.,Ltd. Page 4 of 6 Return SWR 3.2 Active Project:G6 S2PRO Author: Haiou.Zhu File Name: S2PRO_APP_A.doc Date: 2025-12-18 Revision: A CONFIDENTIAL Shenzhen OnePlusOne Wireless Communication Technology Co.,Ltd. Page 5 of 6 BT 4 Mechanical description 4.1 Drawings Project:G6 S2PRO Author: Haiou.Zhu File Name: S2PRO_APP_A.doc Date: 2025-12-18 Revision: A CONFIDENTIAL Shenzhen OnePlusOne Wireless Communication Technology Co.,Ltd. Page 6 of 6

Page 1 of 42 Report No.: HK2509285462-2E FCC Test Report Test Report On Behalf of SPINTSO AB For SPINTSO REFEREE WATCH S2 Pro Model No.: S2 Pro, S2 Pro Lite, S2 Pro X, S3 Pro, G6 FCC ID: 2BBUE-S2PRO Prepared For: SPINTSO AB Ovre Slottsgatan 6, 753 10 Uppsala, Sweden Prepared By: Shenzhen HUAK Testing Technology Co., Ltd. 1-2/F., Building B2, Junfeng Zhongcheng Zhizao Innovation Park, Heping, Fuhai Street, Bao’an District, Shenzhen, Guangdong, China Date of Test: Sep. 28, 2025 ~ Jan. 08, 2026 Date of Report: Jan. 08, 2026 Report Number: HK2509285462-2E Page 2 of 42 Report No.: HK2509285462-2E Test Result Certification Applicant’s Name ................... : SPINTSO AB Address .................................... : Ovre Slottsgatan 6, 753 10 Uppsala, Sweden Manufacturer's Name ............. : Shenzhen Smart Care Technology Limited Address .................................... : Workshop 2101, 2401, 2601, Anda Electronic Industrial Park, Heping Community, Fuhai Sub-district, Bao'an District, Shenzhen, China Product Description Trade Mark ................................. : Spintso Product Name ............................ : SPINTSO REFEREE WATCH S2 Pro Model and/or Type Reference .. : S2 Pro, S2 Pro Lite, S2 Pro X, S3 Pro, G6 Standards ................................ : 47 CFR FCC Part 15 Subpart C 15.247 KDB 558074 D01 15.247 Meas Guidance v05r02 ANSI C63.10: 2020 This publication may be reproduced in whole or in part for non-commercial purposes as long as the Shenzhen HUAK Testing Technology Co., Ltd. is acknowledged as copyright owner and source of the material. Shenzhen HUAK Testing Technology Co., Ltd. takes no responsibility for and will not assume liability for damages resulting from the reader's interpretation of the reproduced material due to its placement and context. Date of Test .............................................. : Date (s) of Performance of Tests ............... : Sep. 28, 2025 ~ Jan. 08, 2026 Date of Issue ............................................. : Jan. 08, 2026 Test Result ................................................. : Pass Testing Engineer Len Liao Technical Manager Sliver Wan Authorized Signatory Jason Zhou Page 3 of 42 Report No.: HK2509285462-2E Contents Page 1 Summary ......................................................................................................................................................... 5 1.1 Test Procedures and Results .................................................................................................................... 5 1.2 Measurement Uncertainty ......................................................................................................................... 6 1.3 Information of the Test Laboratory ............................................................................................................ 6 2 General Information ....................................................................................................................................... 7 2.1 General Description of EUT ...................................................................................................................... 7 2.2 Description of Test Conditions .................................................................................................................. 9 2.3 Description of Test Setup ........................................................................................................................ 10 2.4 Description of Support Units .................................................................................................................... 11 3 Equipments List for All Test Items ............................................................................................................. 12 4 Test Result .................................................................................................................................................... 13 4.1 Antenna Requirement.............................................................................................................................. 13 4.2 AC Conduction Emissions Measurement ................................................................................................ 14 4.3 Radiated Emissions Measurement .......................................................................................................... 18 4.4 Maximum Peak Output Power Measurement ......................................................................................... 26 4.5 Power Spectral Density ........................................................................................................................... 27 4.6 6dB Bandwidth ........................................................................................................................................ 30 4.7 Occupied Bandwidth ................................................................................................................................ 33 4.8 Band Edge ............................................................................................................................................... 34 4.9 Conducted Spurious Emissions .............................................................................................................. 36 5 Test Setup Photos of the EUT .................................................................................................................... 40 6 Photos of the EUT ........................................................................................................................................ 42 Page 4 of 42 Report No.: HK2509285462-2E ** Issued history ** Revision Description Issued Date Remark Revision 1.0 Initial Test Report Release Jan. 08, 2026 Jason Zhou Page 5 of 42 Report No.: HK2509285462-2E 1 Summary 1.1 Test Procedures and Results 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.…

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Test Model: S2 Pro Radiated Emission AC Conducted Emission RF Conducted Emission