2AV5Y-YS54Mini switch pro controller

- iStar Technology CO., Limited - Federal Communications Commission Authorization and Evaluation Division Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 3/25/2024 U.S. Agent Designation [iStar Technology CO., Limited] acknowledges their consent for the following contact located in the United States to act as their agent for service of process for the equipment for which authorization is sought (FCC ID: [2AV5Y-YS54]): Name and company of U.S. agent: Stone Trading Limited Physical U.S. address of agent: 6547 N Academy Blvd #2266, Colorado Springs, United States FRN of U.S. agent: 0033401936 Email address of U.S. agent: [email protected] [Stone Trading Limited] acknowledges their obligation to accept service of process on behalf of [iStar Technology CO., Limited]. [iStar Technology CO., Limited] with the FRN [0029412434] accepts its 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. By signing this form, we confirm the above and that we are aware of the application requirements listed under § 2.911(d)(7). The information provided in this letter is based on the referenced rule parts of Title 47 of the CFR as well as KDB 986446 D01. An expiration date for this letter does not exist. In case the U.S. agent changes, the grantee is obligated to notify the FCC within 30 days via the granting TCB. Sincerely, Signature [Name] Connie Huang [Title] Manager [Company] iStar Technology CO., Limited [Name of U.S. agent] Ms Qier Bao [Title of U.S. agent] Manager [Company of U.S. agent] Stone Trading Limited 48_[mo del] US_Agent_2.911(d)(7) - U, V04

iStar Technology CO., Limited The information provided in this letter is based on the referenced rule parts of Title 47 of the CFR as well as KDB 986446 D01. Federal Communications Commission Authorization and Evaluation Division Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 3/25/2024 To whom it may concern: We, [iStar Technology CO., Limited], hereby certify that the equipment for which authorization is sought (FCC ID: [2AV5Y-YS54]) is not “covered” equipment prohibited from receiving an equipment authorization pursuant to § 2.903 of the FCC rules. We also certify that, as of the date of the filing of the application, we are not identified on the Covered List (https://www.fcc.gov/supplychain/coveredlist ) as an entity producing “covered” equipment. By signing this form, we confirm the above and that we are aware of the application requirements listed under § 2.911(b) and (d)(5) and (6). Sincerely, Signature [Name] Connie Huang [Title] Manager [Company] iStar Technology CO., Limited 62_[model] CoveredEqu_2.911(d)(5)(i) and (ii) - U, V02

Label Location On EUT Label Product Name: Mini switch pro controller Model No.: YS54 FCC ID: 2AV5Y-YS54

RF EXPOSURE EVALUATION FCC ID: 2AV5Y-YS54 According to FCC 1.1310: The criteria listed in the following table shall be used to evaluate the environment impact of human exposure to radio frequency(RF) Radiation as specified in §1.1307(b): Routine SAR evaluation refers to that specifically required by §2.1093, using measurements or computer simulation. When routine SAR evaluation is not required, portable transmitters with output power greater than the applicable low threshold require SAR evaluation to qualify for TCB approval. Channel (MHz) Maximum output power (dBm) Tune up tolerance (dBm) Max Tune Up Power (dBm) Distance (mm) Calculation results Limit Operating Mode 2402 2.47 2.47±1 3.47 5 0.689 3 BLE 2440 2.09 2.09±1 3.09 5 0.637 3 2480 1.61 1.61±1 2.61 5 0.574 3 Test Results: PASS.

TEST REPORT Report No.: 8227EU010703W Applicant: iStar Technology CO., Limited Address: 5th floor, C2 building, Heng Feng Industrial zone, Xixiang, Bao An District, Shenzhen, China Product Name: Mini switch pro controller Model No.: YS54 (refer to clause 2.4) Trademark: N/A FCC ID: 2AV5Y-YS54 Test Standard(s): 47 CFR Part 15 Subpart C Date of Receipt: Mar. 07, 2024 Test Date: Mar. 07, 2024 – Mar. 20, 2024 Date of Issue: Mar. 25, 2024 ISSUED BY: SHENZHEN EU TESTING LABORATORY LIMITED Prepared by: Reviewed and Approved by: ____________________ _____________________ Mikey Zhu/ Engineer Sally Zhang/ Manager Page 2 of 32 Report No.: 8227EU010703W TRF No.: FCC Part 15 Subpart C_BLE (A01) Revision Record Report Version Issued Date Description Status V0 Mar. 25, 2024 Original Valid Page 3 of 32 Report No.: 8227EU010703W TRF No.: FCC Part 15 Subpart C_BLE (A01) Table of Contents 1 COVER PAGE .................................................................................................................................. 1 2 GENERAL INFORMATION ...................................................................................................................... 5 2.1 APPLICANT INFORMATION .................................................................................................................. 5 2.2 MANUFACTURER INFORMATION .......................................................................................................... 5 2.3 FACTORY INFORMATION ..................................................................................................................... 5 2.4 GENERAL DESCRIPTION OF E.U.T. ..................................................................................................... 5 2.5 TECHNICAL INFORMATION OF E.U.T. .................................................................................................. 6 3 TEST SUMMARY ...................................................................................................................................... 7 3.1 TEST STANDARD ............................................................................................................................... 7 3.2 TEST VERDICT ................................................................................................................................... 7 3.3 TEST LABORATORY ........................................................................................................................... 7 4 TEST CONFIGURATION .......................................................................................................................... 8 4.1 TEST ENVIRONMENT .......................................................................................................................... 8 4.2 TEST EQUIPMENT .............................................................................................................................. 8 4.3 DESCRIPTION OF SUPPORT UNIT ........................................................................................................ 9 4.4 TEST MODE ...................................................................................................................................... 9 4.5 MEASUREMENT UNCERTAINTY ........................................................................................................... 9 4.6 DEVIATION FROM STANDARDS ........................................................................................................... 9 4.7 ABNORMALITIES FROM STANDARD CONDITION ................................................................................... 9 5 TEST ITEMS ........................................................................................................................................... 10 5.1 ANTENNA REQUIREMENT .................................................................................................................. 10 5.1.1 Test Requirement ........................................................................................................... 10 5.1.2 Antenna Anti-Replacement Construction ........................................................................ 10 5.1.3 Antenna Gain .................................................................................................................. 10 5.2 CONDUCTED EMISSION AT AC POWER LINE ..................................................................................... 11 5.2.1 Test Requirement ........................................................................................................... 11 5.2.2 Test Setup Diagram ........................................................................................................ 11 5.2.3 Test Procedure ............................................................................................................... 11 5.2.4 Test Data......................................................................................................................... 11 5.3 DTS BANDWIDTH ............................................................................................................................ 14 5.3.1 Test Requirement ........................................................................................................... 14 5.3.2 Test Setup Diagram ........................................................................................................ 14 5.3.3 Test Procedure ............................................................................................................... 14 5.3.4 Test Data......................................................................................................................... 14 5.4 MAXIMUM CONDUCTED OUTPUT POWER .......................................................................................... 15 5.4.1 Test Requirement ........................................................................................................... 15 5.4.2 Test Setup Diagram ..........................................................…

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Page 1 of 24 Report No.: 8227EU010703W-AD ANNEX D TEST DATA For Project No.: 8227EU010703W Client: iStar Technology CO., Limited Product Name: Mini switch pro controller Model No.: YS54 FCC ID: 2AV5Y-YS54 Technology: Bluetooth BLE Test Engineer: Test Date: 2024-03-20 Page 2 of 24 Report No.: 8227EU010703W-AD Test Summary Item Result Duty Cycle Pass Bandwidth Pass Maximum Conducted Output Power Pass Maximum Power Spectral Density Pass Unwanted Emissions In Non-restricted Frequency Bands Pass Page 3 of 24 Report No.: 8227EU010703W-AD 1. Duty Cycle 1.1 Ant1 1.1.1 Test Result Ant1 Mode TX Type Frequency (MHz) T_on (ms) Period (ms) Duty Cycle (%) Duty Cycle Correction Factor (dB) Max. DC Variation (%) 1M SISO 2402 2.094 3.124 67.03 1.74 16.78 2440 2.094 3.125 67.01 1.74 16.78 2480 2.094 3.125 67.01 1.74 16.78 Page 4 of 24 Report No.: 8227EU010703W-AD 1.1.2 Test Graph 1M_LCH_2402MHz_Ant1_NTNV 1M_MCH_2440MHz_Ant1_NTNV Page 5 of 24 Report No.: 8227EU010703W-AD 1M_HCH_2480MHz_Ant1_NTNV Page 6 of 24 Report No.: 8227EU010703W-AD 2. Bandwidth 2.1 OBW 2.1.1 Test Result Mode TX Type Frequency (MHz) ANT 99% Occupied Bandwidth (MHz) Verdict Result 1M SISO 2402 1 1.015 Pass 2440 1 1.015 Pass 2480 1 1.014 Pass Page 7 of 24 Report No.: 8227EU010703W-AD 2.1.2 Test Graph 1M_LCH_2402MHz_Ant1_NTNV 1M_MCH_2440MHz_Ant1_NTNV Page 8 of 24 Report No.: 8227EU010703W-AD 1M_HCH_2480MHz_Ant1_NTNV Page 9 of 24 Report No.: 8227EU010703W-AD 2.2 6dB BW 2.2.1 Test Result Mode TX Type Frequency (MHz) ANT 6dB Bandwidth (MHz) Verdict Result Limit 1M SISO 2402 1 0.641 >=0.5 Pass 2440 1 0.639 >=0.5 Pass 2480 1 0.649 >=0.5 Pass Page 10 of 24 Report No.: 8227EU010703W-AD 2.2.2 Test Graph 1M_LCH_2402MHz_Ant1_NTNV 1M_MCH_2440MHz_Ant1_NTNV Page 11 of 24 Report No.: 8227EU010703W-AD 1M_HCH_2480MHz_Ant1_NTNV Page 12 of 24 Report No.: 8227EU010703W-AD 3. Maximum Conducted Output Power 3.1 Power 3.1.1 Test Result Mode TX Type Frequency (MHz) Maximum Peak Conducted Output Power (dBm) Verdict ANT1 Limit 1M SISO 2402 2.47 <=30 Pass 2440 2.09 <=30 Pass 2480 1.61 <=30 Pass Page 13 of 24 Report No.: 8227EU010703W-AD 3.1.2 Test Graph 1M_LCH_2402MHz_Ant1_NTNV 1M_MCH_2440MHz_Ant1_NTNV Page 14 of 24 Report No.: 8227EU010703W-AD 1M_HCH_2480MHz_Ant1_NTNV Page 15 of 24 Report No.: 8227EU010703W-AD 4. Maximum Power Spectral Density 4.1 PSD 4.1.1 Test Result Mode TX Type Frequency (MHz) Maximum PSD (dBm/3kHz) Verdict ANT1 Limit 1M SISO 2402 -12.88 <=8 Pass 2440 -13.21 <=8 Pass 2480 -13.75 <=8 Pass Page 16 of 24 Report No.: 8227EU010703W-AD 4.1.2 Test Graph 1M_LCH_2402MHz_Ant1_NTNV 1M_MCH_2440MHz_Ant1_NTNV Page 17 of 24 Report No.: 8227EU010703W-AD 1M_HCH_2480MHz_Ant1_NTNV Page 18 of 24 Report No.: 8227EU010703W-AD 5. Unwanted Emissions In Non-restricted Frequency Bands 5.1 Ref 5.1.1 Test Result Mode TX Type Frequency (MHz) ANT Level of Reference (dBm) 1M SISO 2402 1 2.08 2440 1 1.82 2480 1 1.26 Note1: Refer to FCC Part 15.247 (d) and ANSI C63.10-2020, the channel contains the maximum PSD level was used to establish the reference level. Page 19 of 24 Report No.: 8227EU010703W-AD 5.1.2 Test Graph 1M_LCH_2402MHz_Ant1_NTNV 1M_MCH_2440MHz_Ant1_NTNV Page 20 of 24 Report No.: 8227EU010703W-AD 1M_HCH_2480MHz_Ant1_NTNV Page 21 of 24 Report No.: 8227EU010703W-AD 5.2 CSE 5.2.1 Test Result Mode TX Type Frequency (MHz) ANT Level of Reference (dBm) Limit (dBm) Verdict 1M SISO 2402 1 2.08 -17.92 Pass 2440 1 2.08 -17.92 Pass 2480 1 2.08 -17.92 Pass Note1: Refer to FCC Part 15.247 (d) and ANSI C63.10-2020, the channel contains the maximum PSD level was used to establish the reference level. Page 22 of 24 Report No.: 8227EU010703W-AD 5.2.2 Test Graph 1M_LCH_2402MHz_Ant1_NTNV 1M_LCH_2402MHz_Ant1_NTNV Page 23 of 24 Report No.: 8227EU010703W-AD 1M_MCH_2440MHz_Ant1_NTNV 1M_HCH_2480MHz_Ant1_NTNV Page 24 of 24 Report No.: 8227EU010703W-AD 1M_HCH_2480MHz_Ant1_NTNV --------- End of Report -------

version01 iStar Technology CO., Limited Declaration concerning Antenna Specification It i s hereby declared that the product Model No.: YS54, BGK580, KS54 FCC ID: 2AV5Y-YS54 fulfills the requirement in FCC test relating to the antenna type. The device specified above confirms to the FCC recommendations for PCB antenna type(s) described below: Model No. of antenna: CRS1-SPK-V2 Type of antenna: PCB Antenna Gain of the antenna: 2.05 dBi Frequency range: 2400-2500MHz The mounting of the antenna is fixed to the radio module and no other antenna should be used. Company name: iStar Technology CO., Limited Address: 5th floor, C2 building, Heng Feng Industrial zone, Xixiang, Bao An District, City: Shenzhen, ZIP / Postal code: Country: China Place: Place: Date: 2024-03-25 Signature:

Manufacturer: Shenzhen Tianlian Ling Technology Co., LTDCompany address: 5D, Building L, No. 26, Lane 2, Liuxian 1st Road, District 71, Baoan District, Shenzhen Model ： CRS1-SPK-V2 Antenna specification Antenna size diagram ： Return loss： M1 2_40200( GHz 2_ M2 2_45000( GHz 1_ 9579 U - 10 • IVI .) L40L:JUI ljHZ 、 ｜－ 一－ 9 一－ 8 」一 7 』－ 6 ＼～ 」－ 5 一－ 4 ＼ 一－ 3 ＼ � 也 3/ 一－ 2 飞 也 J/ ,, � S tanding-wave ratio： Fre （ MHz ） Eff （ % ） (dB) Gain (dB) 2400 49.27 2.05 2450 43.55 1.29 2500 42.14 1.01 Efficiency/gain ： z 2400. OOOMHz E1 之0 1.0 -0 .5 -2.0 」 4.0 ← 6. 0 阳 8.0 70 2400.000MHz H 2400.000MHz E2 70 9 ’.3 0.3 ,-1 .2 -2.7 ← 4.7 』6.7 1-8.7 2450.000MHz H 10 2450.000MHz E2 9 Directional d iagram： z 9 . 1. 0 0.0 ’5 -3.0 ,-5 .0 ,-7 .0 , -9. 0 70 70 9 70 Directional diagram：